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【简答题】
预制桩硅酸盐水泥标号不得低于()
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皮皮学刷刷变学霸
举一反三
【单选题】----- I had a really good weekend in the countryside, ----- ___________________________.
A.
Oh, that’s very nice of you
B.
Congratulations
C.
It’s a pleasure.
D.
Oh, I am glad to hear that.
【单选题】听力原文：W: Oh I really like your top. Where did you get it? M: I got it from 'Topman'. It was on sale, reduced from 80 pounds to 50. Q: How much was the man's top? (13)
A.
it was 50 pounds.
B.
it was 80 pounds.
C.
it was 20 pounds.
D.
it was 40 pounds.
【简答题】根据某些条件对一个关系作水平分解，选择符合条件的元组组成一个新的关系，这样的操作称为（ ）。 A）投影 B）选择 C）等值连接 D）自然连接
【简答题】A: What can I do for you? B: 1 A: For your daughter ?Look , the shoes are really nice . Do you like them ？ B: Yes . But I’m afraid my daughter doesn’t like the color . ___2______ A: Sure . There are d...
【单选题】—I’ve been invited to a department party tonight. Are you going to come? — Oh, I’d really like to, but I have a ton of work. ___________________.
A.
Thank you anyway
B.
You’re welcome
C.
All right.
D.
With pleasure.
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