题目内容

已知Y=lnX~N(μ,σ2),求X的概率密度.

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How can the men be dressed in the restaurant Very ______.

Questions 9 to 12 are based on the conversation you have just heard.

A. In the morning.
B. During lunch.
C. In the afternoon.
During dinner.

Questions 11 to 18 are based on the conversation you have just heard.

A. One student received a higher grade than he did.
B. He will have to take a number of exams later.
C. The test is more difficult than he expected.
D. Several students in his class have received top grades.

Questions 16 to 18 are based on the passage you have just heard.

A. The men.
B. The women.
C. The managerial class.
D. The professional class.

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