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【单选题】
The stage of the cell cycle where each chromosome is composed of two chromatids in preparation for mitosis.A.
G1
B.
S
C.
M
D.
G2
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A.
to
B.
for
C.
in
D.
with
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A.
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B.
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DADC
D.
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【单选题】--- I saw Nancy on the way home yesterday. --- It be her. She’s gone to America for further study.
A.
mustn’t
B.
can’t
C.
won’t
D.
needn’t
【简答题】He decided to make further improvements on the computer's design _____ the light of the requirements of customers. (A) on (B) for (C) in (D) with
【单选题】药物中的重金属杂质是指
A.
Sn2＋
B.
影响药物安全性和稳定性的金属离子
C.
原子量大的金属离子
D.
在规定条件下与硫代乙酰胺或硫化钠作用显色的金属杂质
E.
Hg2＋
【单选题】药物中的重金属杂质是指
A.
能与金属配合剂反应的金属
B.
能与硫代乙酰胺或硫化钠试液作用而显色的金属
C.
能使蛋白质变性的金属
D.
比重大于5的金属
E.
比重大于3的金属
【简答题】石灰爆裂的定义及危害?
【单选题】. Because her family is too poor, she has to ____ on her uncle for further education in the university.
A.
keep
B.
feed
C.
have
D.
Depend
【简答题】Listen and write the corresponding letter in the right place. a. Conduct interviews for further data. b. Choose the research methods. c. Determine the samples of the survey. d. Pre-test the question...
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