题目内容

Why didn’t the smoke keep going up?[音频]

A. Because there was a layer of warm air up here
Becauseit happened in the swamp.
C. Becauseit came back down.
D. Becauseof the fire.

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Where did the most famous inversion happen?

A. .In Florida.
B. InPennsylvania
C. InPittsburgh.
D. At the Allegheny-Monongahela Valley.

How many vehicles were involved in the crashes?

A. Twelve.
B. Seven
C. Sixty
D. Nineteen

在jQuery中,如果想要从DOM中删除所有匹配的元素,下面正确的是()。

A. delete()
B. empty()
C. remove()
D. removeAll()

在jQuery中,想要找到所有元素的同辈元素,下面()可以实现。

A. nextAll([expr])
B. siblings([expr])
C. next()
D. find([expr])

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