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【判断题】
2G是数字蜂窝通信系统。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】______ that the trade between the two countries reached its highest point.
A.
During the 1980's
B.
That it was in the 1980's
C.
It was in the 1980's
D.
It was the 1980's
【单选题】'Practically' (L. 3, Para. 1) means ______.
A.
almost
B.
as a sensible action
C.
in a practical manner
D.
quite
【单选题】The word 'phony' (Line l3, Para. 2)means _________.'
A.
thorough
B.
ultimate
C.
false
D.
decisive
【单选题】注射前用75%的酒精进行皮肤局部消毒是利用蛋白质的哪个性质
A.
两性电离
B.
胶体性质
C.
变性
D.
沉淀
【单选题】注射前用75%酒精进行皮肤局部消毒,是利用蛋白质的哪个性质。
A.
胶体性质
B.
变性
C.
两性电离
D.
沉淀
【单选题】注射前用75%酒精进行皮肤局部消毒,是利用蛋白质的哪个性质
A.
沉淀
B.
变性
C.
胶体性质
D.
两性电离
【简答题】protocol (Para. 3, Line 1): ________________
【判断题】只有当555定时器5脚悬空时,即外加控制电压为0时,比较器C1和C2的比较电压才分别为2/3VCC和1/3VCC。
A.
正确
B.
错误
【判断题】只有当555定时器5脚悬空时,即外加控制电压为0时,比较器C1和C2的比较电压才分别为2/3VCC和1/3VCC。
A.
正确
B.
错误
【单选题】When Orwell says that the Burmans 'flocked' (L. 3, Para. 1) to follow him be suggests that they were ______.
A.
in a violent hurry
B.
keen to do the same as everyone else
C.
in a panic
D.
eager to be of help
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