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【简答题】
下列关于空气的说法正确的是(  ) A.空气里含量最高的气体是氧气 B.空气是一种化合物 C.空气中既有单质也有化合物 D.细铁丝可以在空气中剧烈燃烧,火星四射,生成一种黑色固体
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【多选题】利用“数据有效性”可以( )。
A.
控制输入文本的长度
B.
控制一列中输入的数据不重复
C.
控制输入数据的范围
D.
提供可输入数据的下拉列表
【单选题】移向暖的下垫面的气团常出现:
A.
稳定性天气,变性快
B.
稳定性天气,变性慢
C.
不稳定性天气,变性慢
D.
不稳定性天气,变性快
【判断题】我们可以利用数据有效性功能可以对录入内容进行限制.
A.
正确
B.
错误
【单选题】—I have seen the film Where Are We Going, Dad?. —__________. I think it’s wonderful.
A.
Neither have I
B.
So have I
C.
Neither have I
D.
So I have
【单选题】Which of the following would most likely cause the production possibilities curve for breadfruit and fish to shift from AA to BB in the above figure (Figure 01)?
A.
an increase in the labor force
B.
choosing more fish and less breadfruit
C.
choosing more breadfruit and fewer fish
D.
a decrease in the capital stock
【简答题】In the above figure, suppose the economy starts at point A. The short-run response to an increase in the growth rate of the quantity of money in monetarist business cycle theory moves the economy to p...
【单选题】{In the above figure, the economy initially is at point A and then an increase in the quantity of money moves the economy to point D. At point D, the real wage rate has }
A.
risen by the same percentage as the price level.
B.
remained constant.
C.
risen.
D.
fallen.
【单选题】图示 AB 单跨梁, A 端发生单位角位移,设其线刚度为 2 i , 则 B 截面的固端弯矩为( )
A.
2i
B.
-2i
C.
4i
D.
0
【简答题】In the above figure, if the economy initially is at point A and government expenditure increases, in the short run the economy will move to pointA. B. B. C. C. A, that is, the equilibrium will NOT cha...
【单选题】移向暖的下垫面的气团常出现:
A.
不稳定性天气,变性快
B.
稳定性天气,变性快
C.
不稳定性天气,变性慢
D.
稳定性天气,变性慢
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