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【简答题】
燃料电池电动汽车是利用 和空气中的 ,在 的作用下,在燃料电池中发生化学反应而产生电能,以此作为主要动力源驱动的电动汽车。
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皮皮学刷刷变学霸
举一反三
【单选题】One of the problems Maggie Kuhn talks about is _________
A.
why elders should be taken care of
B.
where and how elders live
C.
who needs medical care
D.
how to improve education in the USA
【单选题】It is natural ___ . A. that no one should like this play B. that no one liked this play C. that no one likes this play D. why no one likes this play
A.
that no one should like this play
B.
that no one liked this play
C.
that no one likes this play
D.
why no one likes this play
【单选题】Why should one stop eating when one feels full?
A.
This can help you feel your best
B.
It is polite to do so.
C.
This can help you sleep well.
D.
This can protect your teeth.
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