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【单选题】
同步控制是(65)的方式。A.
由统一时序信号控制
B.
只适用于外部设备控制
C.
所有指令执行时间都相同
D.
只适用于CPU控制
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反馈参考答案：
举一反三
【简答题】To make a living, he tried ____and various other things, but he had failed in all. (write)
【单选题】All the money he had had been ____, so he had to make a living by begging.
A.
used up
B.
taken up
C.
stayed up
D.
brought up
【单选题】Little Tom is an orphan___, he has to make a living by himself.
A.
A child as he is
B.
Child as he is
C.
Child as is he
D.
A child though he is
【判断题】In 1993, he started to make a living working for Columbia University as a janitor.
A.
正确
B.
错误
【单选题】女，43岁。突然呼吸困难3小时。神志清楚，两肺广泛哮鸣音。血pH7.47，PaCO 2 30mmHg，PaO 2 75mmHg，BE3mmol/L。患者可能是（）。
A.
失代偿性呼吸性酸中毒
B.
代偿性呼吸性酸中毒
C.
代偿性呼吸性碱中毒
D.
失代偿性呼吸性碱中毒
E.
代谢性碱中毒
【单选题】He has to make a living by himself because he doesn’t have parents to（）.
A.
keep on
B.
depend with
C.
rely on
D.
go to
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