某消费者消费某产品的数量与其收入的关系为M=1 000Q2,当他的收入为64 000元时,他的需求收入点弹性(E)为()。
A. E—0.5
B. E一1
C. E一1.5
D. E一2
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It's so long since I saw him that I almost failed to______him.
A. accept
B. recognize
C. approve
D. receive
The manager______one of the hotel servants of stealing the money.
A. blamed
B. scolded
C. complained
D. accused
The current political______of our country is favorable for foreign investments.
A. weather
B. climate
C. temperature
D. state
Tennis is a______invented by an Englishman one hundred years ago.
A. game
B. play
C. contest
D. match