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【单选题】
光电池是基于 __________ 效应设计。A.
外光电效应
B.
压电效应
C.
光电导效应
D.
光生伏特效应
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举一反三
【单选题】With the rapid economic growth in China, the logistics industry is ()greatly
A.
expanding
B.
exploring
C.
exploding
【单选题】During the expansion stroke, the piston is moving .
A.
inwards
B.
outwards
C.
downwards
D.
upwards
【单选题】_______ the company is not as successful as other big companies, it' s proven it can expand internationally.
A.
Even though
B.
If
C.
Yet
D.
As though
【判断题】It is considered inefficient to use concept tests during the idea screening stage of the new-product development process.
A.
正确
B.
错误
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