Due to a series of thefts, many technology companies need security personnel for______research facilities to protect their intel

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问题 Due to a series of thefts, many technology companies need security personnel for______research facilities to protect their intellectual property.

选项 A、them
B、theirs
C、their
D、they

答案C

解析 语法:代词1.这是一道词汇题,选项均为代词。2.空格内须填入一个词修饰后面的名词facilities,物主代词their可作修饰词,因此(C)为正确选项。
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