题目内容

如果A，B两种股票的相关系数r=0,则表示这两种股票()。

A. 完全正相关
B. 完全负相关
C. 完全不相关
D. 相关程度不确定

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装卸时间事实记录是船舶从装货开始到装货完毕期间的实际情况记录。()

A. 正确
B. 错误

【B7】

A. sees
B. looks
C. appears
D. remains

【B10】

A. friendly
B. personal
C. impersonal
D. unfriendly

听力原文：W: Dr. Black's office. May I help you？
M: Yes, I'd like to see Dr. Black.
W: Will this be your first visit to Dr. Black？
M: Yes, it will be.
W: What is your name？
M: Tom Watson.
W: Okay, Mr. Watson, would you be able to come to the office on Friday at 10？
M: On Friday at 10？ Yes, that will be fine.
W: What is your telephone number, please？
M: 89780752.
W: Thank you very much, Mr. Watson. We'll see you then.
M: Thank you. Good-bye.
W: Good-bye.
What time does the secretary ask Tom Watson to come to the office？

A. On Friday at 10.
B. On Friday at 8.
C. On Tuesday at 10.