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【单选题】
第 9 题(本题:1分) 有两个关系R,S如下,由关系R和S通过运算得到关系T,则所使用的操作为A.
并
B.
自然连接
C.
差
D.
交
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举一反三
【单选题】听力原文：M: I had my watch repaired in a watch shop, last night. I put it on the desk, but I can't find it now: W: I saw it and put it into the drawer when I came back last night. Where is the man's watch...
A.
In the watch shop.
B.
On the desk.
C.
In the drawer.
【单选题】听力原文：W: Can I help you, sir? M: Yes, I'm looking for a watch. W: What kind of watch are you interested in, a dress watch or a sports watch? M: A dress watch. W: We have quite a few famous watches here...
A.
A dress.
B.
A watch.
C.
A pair of sports shoes.
【单选题】听力原文：W: My watch is out of battery. What's the time by your watch? M: My watch says it's 9:35, but it's 7 minutes ahead. Q: What's the correct time now? (18)
A.
It's 9:28.
B.
It's 9:25.
C.
It's 9:35.
D.
It's 9:42.
【简答题】怂恿,利诱 免疫的,不受影响的 继续进行,继续做,前进,移动 调节,协调 使模糊,使看不清
【单选题】听力原文：W: When will my watch be ready? M: Well, it is 7:00 o'clock by my watch, and I'll get it ready in a couple of hours. Q: When can the woman get her watch? (10)
A.
At 9 A.M.
B.
At 9 P.M.
C.
At 2 A.M.
D.
At 12 P.M.
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