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【判断题】
居住组团是构成居住小区的基本单位A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】C. 完形填空。 As we all know, Chinese students are hard-working. But they ’ re 26 at the same time. At school, they have to follow the strict school 27 . For example, they 28 have long hair or wear strange...
【简答题】如图所示的液位报警装置的部分电路。u i是液位传感器送来的信号,UR是参考电压,如果液位超过上限,即ui超过正常值时,报警灯亮。试说明电路的工作原理,二极管D和电阻R的作用。
【单选题】I hope they ______ this road by the time we come back next summer.
A.
have repaired
B.
will repair
C.
are to repair
D.
will have repaired
【单选题】What does the woman mean?
A.
They re ready for the snow.
B.
Once it starts, it 11 snow a lot.
C.
It has been snowing for some time.
D.
The winter has just begun.
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