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【简答题】
Text three mentions in the first sentence the clash of the old and the new in China. What represents the old?How do they clash with each other? Which cities are being talked about? What are the situations like in these city?
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反馈参考答案：
举一反三
【单选题】If at a price of $10, quantity bought will be 5400 per day, and at $15, quantity bought will be 4600 per day, then the price elasticity of demand is approximately:
A.
0.2.
B.
0.4.
C.
0.6.
D.
2.5.
E.
6.0.
【简答题】请简述专利申请的基本条件。
【单选题】If at a price of $10, quantity bought will be 5400 per day, and at $15, quantity bought will be 4600 per day, then the price elasticity of demand is approximately:
A.
0.2
B.
0.4
C.
0.6
D.
2.5
【多选题】\t下列选项中，属于IEEE 802.11无线局域网物理层标准的有（）.
A.
IEEE802.11a
B.
IEEE802.11b
C.
IEEE802.11g
D.
IEEE802.11p
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