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【判断题】
α-淀粉酶以随机的方式作用于淀粉分子内部的α-1，4糖苷键，产生糊精、低聚糖和单糖等水解产物。对1，6糖苷键不起作用。α-淀粉酶是一种内切酶。底物为直链淀粉时，最终产物是葡萄糖和麦芽糖；底物为支链淀粉时，最终产物除葡萄糖和麦芽糖外，还有一系列α-极限糊精，含有该酶无法作用的α-1，6糖苷键。用于水解淀粉制造葡萄糖、饴糖（麦芽糖）和糊精。A.
正确
B.
错误
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【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】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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