题目内容

Confrontation has dominated Sino-US relations up to now.

A. Y
B. N
C. NG

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听力原文：M: Will that be cash or charge？
W: I want to pay by check if I may.
M: Certainly. That's cash, then.
W: Cash？
M: Yes. Both money and checks are considered cash. Only credit cards are charge.
W: Oh.
M: Just make the check out to the Family Store.
W: Okay.
M: And I'll need two pieces of identification. A driver's license and a major credit card.
W: Well, here's my driver's license, I don't have any charge cards.
M: I need two numbers. Your student number is on the ID, isn't it？
W: Yes, it is. Do you need anything else？
M: Just put your telephone number on the front of the check.
W: Okay.
M: Good. Now let me give you your license, your ID, and your package. And thank you for shopping at the Family Store.
W: Thank you.
(20)

A. To help the woman make a purchase.
B. To request the woman's identification.
C. To show the woman for a course at City College.
D. To register the woman bow to make out a check.

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下面第2题是基于以下的说明：设有供应商关系S和零件关系P如图所示。它们的主码分别是“供应商号”和“零件号”。而且，零件关系P的属性“供应商号”是它的外码，属性“颜色”只能取值为(红，白，蓝)(这里假定DBMS不支持级联修改功能)
今向关系P插入新行，新行的值分别列出如下
Ⅰ．('201'，'白'，'S10')
Ⅱ．('301'，'红'，'T11')
Ⅲ．('301'，'绿'，'B01')
它们中()不能被插入。

A. 只有Ⅰ
B. 只有Ⅰ和Ⅱ
C. 只有Ⅱ
D. Ⅰ、Ⅱ和Ⅲ

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Why did FBI deem it impossible to produce a useful profile of a possible shooter？

A. Because the occasional behavior. on a checklist of warning signs cannot be proof of an adolescent's violent inclination.
Because not all the shooters show violent behavior. in their daily life.
C. Because the Columbine massacre in 1999 did not give us anything new or valuable.
D. Because the school shooters do not have anything in common.

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The word "flip" (Pare. 2) most probably means______.

A. decline
B. intensify
C. fluctuate
D. reverse

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Confrontation has dominated Sino-US relations up to now.

A. Y B. N C. NG

Why did FBI deem it impossible to produce a useful profile of a possible shooter？

The word "flip" (Pare. 2) most probably means______.

A. Y
B. N
C. NG