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【单选题】
在刚玉（α-Al2O3）结构中，既有O2-作近似六方密堆积，Al3+填充A.
1/2 四面体空隙
B.
1/2 八面体空隙
C.
2/3 四面体空隙
D.
2/3 八面体空隙
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举一反三
【单选题】There is _____ with him.
A.
anything serious
B.
nothing serious
C.
serious something
D.
serious anything
【简答题】How new is New Labor?
【单选题】--- Is your mother badly ill? ---NO, ,only a little cold
A.
serious anything
B.
serious nothing
C.
anything serious
D.
nothing serious
【单选题】电压互感器的特点是：（）
A.
一次绕组的匝数很多，二次绕组较少。
B.
一次绕组的匝数较少，二次绕组很多。
C.
运行时二次回路相当于短路。
D.
与仪表、继电器等电流线圈串联。
【单选题】There is _____ with him. [ ]
A.
anything serious
B.
nothing serious
C.
serious something
【单选题】—Is your mother badly ill? —No, ______, only a little cold. [ ]
A.
serious anything
B.
serious nothing
C.
nothing serious
D.
anything serious
【单选题】Don’t be nervous. There is ___________.
A.
anything serious
B.
something serious
C.
everything serious .
D.
nothing serious
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