Logical judgment
Give a statement for each question. The hypothesis is correct and beyond doubt. You are asked to choose an answer according to this statement. Note: The correct answer should be consistent with the given statement and can be directly deduced from the statement without any additional explanation.
96. Astronomers found that the Milky Way collided with a smaller galaxy or a huge dark matter structure 1 100 million years ago, and it is still there? Vibration? By contrast, like waves, the speed around the center of the Milky Way reaches 220 kilometers per second.
If the following is true, what can best strengthen the above view is:
A There are differences in the horizontal distribution of the Milky Way between north and south, while the stars in other galaxies are evenly distributed.
B The Milky Way is the largest galaxy in the universe, and such a collision is inevitable in high-speed motion.
C. Astronomers found hundreds of huge dark matter structures active around the Milky Way.
It is documented that some astronomers believe that the Milky Way suffered such an impact.
97. The biological clock gene is a special gene that controls the biological clock. They interact to control other genes, sometimes active and sometimes silent, forming a sleep rhythm. Scientists have found that long-term light will disturb the biological clock in the brain cells of young rats that regulates the rhythm of sleep and awakening. In order to take care of newborns conveniently, the baby care rooms in some hospitals are used to placing them in a long-term light environment. Scientists are worried that this long-term light environment may lead to the disorder of newborn's sleep and wake-up rhythm.
Which of the following is correct and can be a prerequisite for scientists to worry?
Many babies will be handed over to their parents only after a short stay in the nursing room.
B. The light intensity of the young mice is the same as that of the baby care room.
C. The mechanism of human biological clock is basically the same as that of mice used in the experiment.
D. Young mice whose biological clocks are disturbed by long-term light are difficult to recover even if they are put back into the normal environment.
98. Inspired by fireflies, researchers used synthetic biotechnology to recombine fluorescent genes into an Agrobacterium, and used DNA to transfer a tiny plant called Arabidopsis thaliana to cultivate luminous Arabidopsis thaliana. They believe that if this technology is applied to trees, it will make future trees shine and be used as street lamps, which will greatly save energy.
Which of the following is correct and can weaken the above conclusion most?
A. The researchers recombined the fluorescent gene into an Agrobacterium and used it to transfer DNA with trees, but this bacterium will affect the growth life of trees.
Arabidopsis thaliana can fuse well with the fluorescent gene in Agrobacterium, but it is difficult for ordinary trees to combine with this gene.
C. this cheap light source realized by biotechnology is very energy-saving. According to analysis, it produces more energy than batteries.
D. Due to the dense traffic in busy streets, this luminous plant is difficult to appear and can only play a lighting role in tree-lined paths.
99. The latest research found that the key difference between wolves and dogs is the characteristics of eating human food. Centuries later, eating human food caused dogs to have the gene to digest starch, so they could live on human leftovers, and finally domesticated them, that is, they changed greatly in their morphology, physiological functions, behavior habits and attitudes towards human beings and became domestic animals.
Which of the following is true, beyond question?
A. If people catch and domesticate pups in the wild for a long time, the behavior of pups will change and they will approach humans.
B. Long-term field observation shows that when wolves lack prey, they also dig out the tubers of plants to satisfy their hunger.
C In pastoral areas, many shepherds, like their owners, mainly eat meat and don't eat starchy food, which is also the case in the times.
D. Dogs have been eating human meals since the agricultural society, so dogs are more friendly to human beings than wolves and are more willing to wander in human settlements.
100. Under the action of room temperature gas, the global average temperature is getting higher and higher, accompanied by the increase of global absolute humidity. Most tropical and mid-latitude regions may experience hot weather and high humidity. In the past 50 years, the human labor force has dropped to 90%. By 2050, this figure is estimated to drop to 80%, and by 2200, the labor force will fall below 40%. Therefore, it is concluded that in the hot and humid environment in the future, the amount of human labor will be reduced.
Which of the following is correct, and which can best question the above conclusion?
A. Hot and humid weather has great influence on outdoor workers' labor, but little influence on indoor workers.
B. With the improvement of labor protection and mechanical capacity, the influence of the environment on people is getting smaller and smaller.
C. the increase of climate humidity has a greater negative impact on human labor ability than the increase of temperature.
D. Climate problems mainly limit human activities in tropical and mid-low latitudes.
10 1. Studies have found that dreaming may be a therapeutic process that can alleviate or eliminate painful memories. The researchers first showed the subjects pictures that could stimulate their emotions. After the subjects fell asleep, the researchers scanned their brains and found that during the rapid eye movement (REM) period when dreams appeared, the activity in the brain areas that control emotions decreased.
If the following is true, what can best support the scientist's point of view is:
A. painful dreams can inhibit the activity of emotional areas in the brain.
B.REM did not completely eliminate bad memories.
C. happy emotions can stimulate the activity of emotional areas in the brain.
D. Maintaining mental health is an important function of sleep.
102. Regarding the off-site college entrance examination, Party A believes that the off-site college entrance examination can effectively promote education equity and break through the household registration system; Party B believes that the college entrance examination in different places will lead to a vicious population expansion in big cities.
If the following is true, what cannot be used as the argument of the above two parties is:
Uneven distribution of educational resources and unreasonable enrollment system are the root causes of unfair education.
B. once the college entrance examination in different places is released, it is inevitable? College entrance examination immigrants? Flood problem
C. It is unfair to ask students to go back to their hometown for the college entrance examination because the college entrance examination in each province implements independent propositions.
D. the operation of the college entrance examination in different places is very difficult, involving all aspects of interests and things.
103. After planting licorice in a wastewater treatment tank, researchers in a certain country found that licorice grows luxuriantly, and the effect of absorbing phosphide in water is particularly obvious, and its oxygen production capacity is also excellent. Therefore, the researchers believe that planting licorice is conducive to purifying water quality.
Which of the following is correct and can weaken the above conclusion most?
A. Compared with wild licorice, artificially planted licorice can only absorb a small part of phosphide in wastewater.
B. The waste water contains a lot of sulfides. At present, licorice can not effectively decompose such oxides.
C. Glycyrrhiza mainly grows in arid or semi-arid areas, the soil is mostly alkaline or neutral, and the wastewater is mainly acidic.
D. The substances contained in licorice can react with some oxides in sewage to release oxygen, but licorice itself will also consume oxygen in photosynthesis.
104. According to Bergman's law, warm-blooded animals emit the same amount of heat per unit surface area, so large animals can obtain a smaller ratio of body surface area to volume than small animals and consume less energy in thermoregulation. Therefore, among animals of the same species, there are more people living in colder climate than in warmer climate.
If the following is true, what can weaken the above view most is:
A. animal populations with colder climates hibernate for a long time.
B. The heat emitted from the body surface of warm-blooded animals is not much.
C. the increase of animal size will inevitably lead to the increase of absolute heat dissipation.
There are also many small warm-blooded animals in cold areas.
105. The smell of cats is a natural deterrent to mice, and mice will be sensitive to this smell and take the initiative to stay away from natural enemies. However, the researchers found that when mice were infected by parasites, parasites not only suppressed the mice's fear of the smell of cats, but even made them close to cats, thus greatly increasing the chances of mice being killed by cats. Therefore, the researchers concluded that parasites can make mice lose their fear of cats.
If true, which of the following can best explain the above inference?
A. Fear and affinity may not be completely unrelated emotions.
B. the metabolites of parasites can inhibit the instinctive fear response of mice to the smell of cats.
C. after the parasite invades the mouse, it parasitizes in the area of the mouse brain responsible for fear and other emotional behaviors.
D. parasites need to enter the digestive system of cats to reproduce, so mice can only reproduce if they are preyed by cats.
Reference answer and analysis