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【简答题】
无活性状态的酶的前身物称为 ,在一定条件下转变成有活性酶的过程称 。其实质是 的形成和暴露过程。
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【单选题】W h at does Liam mean by “I have such a sweet tooth” ?
A.
“I have a bad tooth . ”
B.
“I love sweet food . ”
C.
“My tooth tastes sweet . ”
【单选题】—Can you go shopping with me? —__________. [ ]
A.
Very well.
B.
It's too bad.
C.
Sorry,I have to do my homework.
D.
Sorry, I'd love to.
【简答题】Dear Sigmund Friend I am a Grade 9 student. I have 21 problem, and I do not know how to deal 22 it. I have a lot of homework every day, and I have no choice 23 to do it. I often stay up late to comple...
【简答题】One day last week I went a walk in the country. In the morning the weather was well and the sun was shining; the sky was blue and there were no could. Soon a cool wind started blown and black clouds w...
【简答题】I
have a bad h ______. (头疼)
【简答题】根据句意填空。 1. —What's the _______ with you? —I have a h_______. —You should go to bed. 2. Mrs Green's daughter has a bad c_______ She has to take her to see a doctor. 3. If you have a s_______. you ...
【单选题】— I have a bad cold. — _____. [ ]
A.
No problem
B.
Yes, you don't look well
C.
Thanks
D.
I'm sorry to hear that
【简答题】A. injuries B. disadvantages C. opportunity D. decisions E. projects F. enriched G. classify H. intellectual I. acquire J. attain K. discouraging L. frightenin...
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