题目内容

The man ______left leg broke in the match used to be a football player.

A. whose
B. who
C. whom
D. that

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He is an American astronaut ______ was the first man to set foot on the moon.

A. which
B. whom
C. whose
D. who

My sister, ______ is a teacher, always encourages me to study hard.

A. for whom
B. who
C. whose
D. whom

My sister always hits me, _____makes me unhappy.

A. as
B. who
C. which
D. for which

从外部来看,地理信息系统表现为计算机 ,其内涵却是由组成的地理空间信息模型,是一个逻辑缩小的、高度信息化的地理系统。

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