题目内容

--Is the schoolbag under the desk yours? No, it’s my______. He left it there just now.

A. brother
B. brother’s
C. brothers’
D. brothers

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The desk was covered________ papers.

A. on
B. in
C. from
D. with

Mount Heng is a place of interest with different kinds of ______.

A. tree
B. plants
C. animal
D. flower

Both Tom ______ his brother are good at Chinese.

A. but
B. or
C. and
D. so

先锋霉素皮试液每毫升含先锋霉素为

A. 150μg
B. 500μg
C. 2500μg
D. 0.075μg
E. 50mg

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