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【单选题】
无菌盘在未污染的情况下可使用
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12小时
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8小时
D.
4小时
E.
一小时
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参考答案:
举一反三
【单选题】在机床夹具上布置六个支承点,限制的自由度数为 ( ) 。
A.
六个
B.
不确定
C.
三个
D.
四个
【简答题】When it comes to friends, people always know this old saying——A friend in need is a friend indeed. The best friend a man has in the world may him and become his enemy. His son or daughter that he has ...
【简答题】单句改错。 1. Your friend comes to school is very upset. _________ 2. Tell your friend that you are concerning about him. _________ 3. While walk the dog, you were careless and it got loose. __________ 4. ...
【单选题】由形态相同或相似的细胞群,以一定的形式连接,形成担负一定机能的结构称为( )
A.
器官
B.
组织
C.
系统
D.
细胞群
【单选题】My friend Tom comes from Canada and _______ is a tall boy with blue eyes.
A.
he
B.
his
C.
she
D.
it
【简答题】试述单核吞噬细胞系统的定义、细胞来源、组成和分布。
【单选题】相对其他肌组织而言,心肌组织中含量最多的肌酸激酶(CK)同工酶是()
A.
CK-BB
B.
CK-AA
C.
CK-MM
D.
CK-MB
E.
CK-MA
【单选题】My friend comes from __________ north of country.
A.
the
B.
a
C.
an
D.
\
【单选题】— I think you'd better type this letter again before Mr. Smith see it. — Oh, dear! _____ [     ]
A.
Who cares?
B.
No problem
C.
I don't mind at all
D.
Is it as bad as that?
【单选题】Let's take a walk before we start to study again. 'Oh, I think it's ______ for walking.'
A.
much too hot
B.
very much hot
C.
too much heat
D.
very much heat
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