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【单选题】
无线传感器网络与传统的无线网(如Wi-Fi、移动通信网)之间的主要区别是( )A.
节点分布密集
B.
数量巨大
C.
前者更注重能量的高效利用
D.
前者更注重网络的服务质量
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皮皮学刷刷变学霸
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.
【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.
14.00
B.
7.00
C.
4.00
D.
30.00
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