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【单选题】
According to the passage, Americans tend to ignore the rest of the world because ______.A.
they are too proud of themselves
B.
they are not interested in other countries
C.
they are too busy to learn about other countries
D.
their country does not have many neighboring nations
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反馈参考答案：
举一反三
【简答题】请利用CNKI一框式检索,检索篇名为“中国情境下政府会计准则执行策略的理论框架构建”,该文作者单位是( )。
【简答题】PV cell
【简答题】请利用CNKI一框式检索,检索篇名为“美国政府金融审计主要特色及对我国的启示”的文章,其第一作者为( ),署名作者数共有( )名。
【单选题】听力原文：M：The cell phone is a bit small，isn't it? W：All the cell phones I've ever seen are like that．That's the in thing these days． Q：What does the woman imply? (13)
A.
Cell phones are more convenient when they are smaller.
B.
He should change his thinking and understand that smaller phones are better.
C.
He should accept the fashion.
D.
Cell phones are not worth buying these days.
【单选题】Which of the following types of PV cell is the most efficient?
A.
Amorphous silicon
B.
Organic PV
C.
Quantum dot cells
D.
Monocrystalline silicon
【简答题】PV cell
【单选题】What happens in a PV cell when an incident photon has energy which is greater than the band gap energy?
A.
An electron can jump from the conduction band to the valance band
B.
An electron can move from the valence band to the conduction band
C.
Nothing, the energy must exactly match the band gap energy
D.
The photon is absorbed into the crystal lattice
【单选题】If a PV panel rating is rated at 200 W, what would the expected output power be when the solar irradiance is 200 W?
A.
200 W
B.
100 W
C.
40 W
D.
20 W
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