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【简答题】
A．右外连接 B．自然连接 C．外连接 D．连接
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举一反三
【单选题】– Hi, Peter. How is your work getting along? – Very well. Everything is going on according to ______.
A.
schedule
B.
forecast
C.
expression
D.
accent
【简答题】针对矿石中元素赋存状态的研究,通常有哪些方法。
【单选题】—Hi, Jim. I haven't seen you for a long time! You look well! —_______. You look well, too. [ ]
A.
Great
B.
Thanks
C.
Oh, no
D.
Not at all
【单选题】-----Hi, I haven’t seen you for years. You look well. -----________. You look well, too.
A.
Great
B.
Thanks
C.
Oh, no.
D.
Not at all
【单选题】听力原文：M: Hi, Claire. How does it feel to be back on campus? W: Keith, hi. Well, to tell you the truth, I have mixed feelings. M: Oh, why? W: I had this great summer job that I really hated to leave. I ...
A.
The birds won't learn to keep away from people.
B.
She might change her major.
C.
There are more endangered species in zoos than in the wild.
D.
She wasn't quite ready to come back to campus.
【简答题】氟利昂制冷剂的分子通式?命名规则是?
【单选题】听力原文：M: Hi, Claire. How does it feel to be back on campus? W: Gee, Hi, well, to tell you the truth, I have mixed feelings. M: Oh, why? W: I have this great summer job that I really hated to leave. I w...
A.
She wasn't quite ready to come back to campus.
B.
There are more endangered species in zoos than in the wild.
C.
The birds won't learn to keep away from people.
D.
She might change her major.
【单选题】听力原文：M: Hi, Claire. How does it feel to be back on campus? W: Gee, Hi, well, to tell you the truth, I have mixed feelings. M: Oh, why? W: I have this great summer job that I really hated to leave. I w...
A.
She wasn't quite ready to come back to campus.
B.
There are more endangered species in zoos than in the wild.
C.
The birds won't learn to keep away from people.
D.
She might change her major.
【单选题】听力原文：M: Hi, Mary. W: Hi, Thomas. What's happening? M: Well, I've decided I have to get a car. W: You're going to buy a car? Do you really need one? I'd probably still be driving except that my car bro...
A.
He uses it for his job.
B.
He spends too much time on the bus.
C.
He lives too far from the university.
D.
He would feel safer at night with a car.
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