■0 1. As a cameraman of city TV station, the recent sudden change of domestic battery market has made me very headache. Imported batteries are out of stock, so I can only use domestic batteries as the main power supply for camera shooting. Although domestic batteries are cheaper than imported batteries, I estimate that my energy payment will increase if I continue to use domestic batteries instead of imported batteries to provide the same power supply.

Which of the following assumptions is implied by the person who said this in the above passage?

A. Based on the electric energy provided by each unit battery, domestic batteries provide less than imported batteries.

B. the unit price of imported batteries is more expensive than that of domestic batteries.

C the cost of producing domestic batteries is lower than that of producing imported batteries.

D. If domestic batteries are used continuously, the shooting quality of the camera will not be guaranteed.

■0 1. [Problem solving analysis] Correct answer: A.

(power supply/unit domestic battery power supply) × unit price of domestic battery > (power supply/unit imported battery power supply )× unit price of imported battery.

Then there can only be one correct answer: unit domestic battery power supply.