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【多选题】
嘌呤核苷酸和嘧啶核苷酸从头合成的共同原料有A.
5-磷酸核糖
B.
谷氨酰胺
C.
甘氨酸
D.
天冬氨酸
E.
CO2
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举一反三
【单选题】One of the great changes brought about by the knowledge society is that ______.
A.
the difference between the employee and employer has become insignificant
B.
people's traditional concepts about work no longer hold true
C.
the importance of high technology has been overlooked
D.
people have to change their jobs from time to time
【单选题】听力原文：Help yourself to some fish，please! (5)
A.
I can't help you.
B.
I will help you to eat the fish.
C.
I like eating fish.
D.
Thanks a lot.
【单选题】One of the great changes brought about by the knowledge society is that ______.
A.
the difference between the employee and the employer bas become insignificant
B.
people's traditional concepts about work no longer hold true
C.
most people have to take part-time jobs
D.
people have to change their jobs from time to time
【单选题】Which of the following statements is NOT true according to the passage?
A.
Sciences is different from arts.
B.
Arts require knowledge while sciences require skill.
C.
Arts have got a new meaning today.
D.
Ceramic work is an art.
【简答题】She has been ___________ since losing her job . She work for diffe rent companies for a short time without a permanent contract.
【单选题】Help yourself to some fish.
A.
I'll have it if you insist.
B.
Thank you for your help.
C.
Sorry.
D.
Yes, please.
【单选题】One of the great changes brought about by the knowledge society is that ______.
A.
the difference between the employee and the employer has become insignificant
B.
people's traditional concepts about work no longer hold true
C.
most people have to take part-time jobs
D.
people have to change their jobs from time to time
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