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【单选题】
阴性细菌的脂多糖存在于:A.
细胞膜
B.
细胞壁
C.
细胞质
D.
肽聚糖层
E.
磷壁酸
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反馈参考答案：
举一反三
【单选题】听力原文：W: If you are in a hurry you can take the underground. If you have enough time, take a bus to the Great Wall. It's wonderful. M: The meeting will not be open until tonight. I'm free this afternoo...
A.
Take the underground.
B.
Visit the museum.
C.
Attend the meeting.
D.
Go to the Great Wall.
【单选题】I hope you will have fun during your visit to Paris.
A.
get bored
B.
be funny
C.
feel well
D.
have a good time
【简答题】Find the correct choices in brackets to complete the sentences. 1) — “Who is he? — “ I don ’ t know. You may ask Mary ___________ (who he is, who is he). ” 2) — “ We ’ re late. The play has started. ”...
【简答题】The 2012 London Olympic s will be held on July 28 th . Do you have time to go there? If you do, maybe you will meet some foreign friends. But do you know their characteristics(特征)? The Germans are...
【简答题】Writing: Suppose you are Peter. Write an email to your English teacher, Miss Li , according the situation. Situation : Your English teacher has told you that you will write a test on Monday, but you h...
【简答题】什么叫一级反应？写出一级反应动力学方程式和以转化率表示的动力学方程式。
【单选题】Please let us have more time,______?
A.
shall we
B.
will you
C.
won' t you
D.
don' t you
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