持有期为1天，置信水平为99%，风险价值为1万美元，则表明该资产组合在1天中的损失有99%的可能会超过1万美元。()
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When did Kroc open his 100th McDonald's？
A. In 1955.
B. In 1959.
C. In 1961.
A good way to train an animal to do something quickly is to ______.
A. make the action easy
B. praise it in words
C. reward it with food
D. weaken its motivation
A．He ran three restaurants with his wife's help.B．He and his wife did everything by th
A. He ran three restaurants with his wife's help.
B. He and his wife did everything by themselves.
C. He worked both as a cook and a waiter.
D. He hired a cook and two local waitresses.
【C8】
A. has
B. have
C. had
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