He__________into the office building when thefire bell rang.

He__________into the office building when thefire bell rang.A.goes B.has gone C.

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What happened to the man?

What happened to the man?A.He passed the exam. B.He failed the exam. C.He will p

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在读取二进制数据文件的记录时,为了提高效率常 常使用的一种辅助类是(  )。

在读取二进制数据文件的记录时,为了提高效率常 常使用的一种辅助类是(  )。 A.InputStream B.FileInputStream C.String

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If there were no greenhouse effect,________.

If there were no greenhouse effect,________. A.earth would be thirty degrees c

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People in the planecall__________.

People in the planecall__________. A.have a good sleep B.have some small gifts C

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