单选题
What does "to zero out" mean?
A、
to lose a special item or treasure
B、
to gain solar power
C、
to pay for more reliable electrical power
D、
to owe the electric utility company nothing
【正确答案】
D
【答案解析】
zero out使……变为零,这里使电费变为零,即不用供电公司的电。
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