选择题：significance of the matter _10_ hand.

题目内容：

significance of the matter _10_ hand. A of
B to
C at
D in

参考答案：

business call because Americans generally _6_ or e

business call because Americans generally _6_ or enquire about their visitors pr

Kay James ___________.A is not a blackB is a poor black motherC has five brother

According to the passage, the wide-spread concern about computers was that they

用户要在程序一级获得系统帮助，必须通过( )A 进程调度B 作业调度C 键盘命令D 系统调用

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