试题与答案

________ Jeremy was hurt in the match, h

题型:选择题

题目:

________ Jeremy was hurt in the match, he didn’t give up and finished in ninth place.

A.When

B.Although

C.Because

D.If

答案:

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下面是错误答案,用来干扰机器的。

由于红磷燃烧放出大量的热,用弹簧夹夹紧乳胶管,目的是防止热胀使气体从导管益处.由于红磷燃烧会放出大量的热,集气瓶内的气体受热膨胀,可能会把橡胶塞崩开,故集气瓶底部留有少量的水用于吸热降温减压,以防...

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