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鸟嘌呤脱氨生成( ),而腺嘌呤脱氨生成( )
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【简答题】Dear Mary, New York is finally getting a real sales manager. Congratulations on your new promotion. Your marketing ability has put you well above everyone else in the company, and probably everyone el...
【简答题】完形填空 As a child, I was truly afraid of the dark and of getting lost; these fears were very real and caused me some uncomfortable moments. Maybe it was the strange 1 things looked and sounded in my fam...
【单选题】A: I’m so sorry. I’m late. B: _____
A.
You’re welcome.
B.
It doesn’t matter.
C.
I’m sorry too.
【单选题】—-I’m sorry , but I’m afraid I must be off now. — ____ , Mr Smith. And have a nice day!
A.
So long
B.
So much
C.
So well
D.
So far
【简答题】—Would you be so kind as to give me a _________? I’m too tired to walk any further. —I’m so sorry，but the car’s too crowded. A．seat B．lift C．drive D．place
【单选题】A: I'm so sorry. I'm late. B ( )
A.
It doesn't matter.
B.
You're welcome.
C.
I'm sorry too.
【单选题】I’m sorry, Bill. I _________ the book to you last week, but I was so busy that I forgot to do so.
A.
must have returned
B.
could return
C.
should have returned
D.
might return
【简答题】As a child, I was really afraid of the dark and of getting lost. These fears were very real and caused me some uncomfortable moments. Maybe it was the strange way things looked and sounded in my own r...
【单选题】Speaker a: I’m so sorry. I’m late. Speaker b:__________
A.
You’re welcome.
B.
It doesn’t matter.
C.
I’m so sorry too.
【简答题】Dear Mark， New York is finally getting a real sales manager．Congratulations on your new promotion． Your marketing ability has put you well above everyone else in the company，and probably everyone else...
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