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【单选题】
在利用交互式电子白板进行教学时,建议更多在白板软件的( )模式下设计白板课件,组织课堂教学。A.
控制模式
B.
注解模式
C.
窗口模式
D.
.操作模式
手机使用
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反馈参考答案：
举一反三
【单选题】Suppose a country is producing $20 million of real GDP. If the economy grows at 10 percent per year, approximately how many years will to take for real GDP to grow to $80 million?
A.
14
B.
7
C.
4
D.
30
【单选题】Suppose a country is much richer than the others in the Solow growth model. What happens in the long run?
A.
The other countries catch up to the rich one.
B.
The rich country grows the fastest.
C.
The rich country becomes poorer than the others.
D.
Nothing.
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