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【单选题】
下列哪种溶液被推荐为病理标本的首选固定液（）。A.
10%甲醛溶液
B.
中性缓冲甲醛
C.
乙醇
D.
Zenker固定液
E.
中性缓冲甲醛溶液
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皮皮学刷刷变学霸
举一反三
【简答题】测量范围0~100℃的下限值为()，测量上限为()，量程为() 。
【单选题】If you have a good chance ______ English with a foreigner, catch it! [ ]
A.
to practice speak
B.
to practice speaking
C.
practice speaking
D.
to practice to speak
【简答题】In practice, this is an advantage to the aeroplane, which is already at a good height when it reaches the polar region and so does not to climb, while at the same time cold air keeps the clouds down l...
【单选题】Doing lots of listening practice is one of the secrets _____ becoming a good language learner, [ ]
A.
in
B.
at
C.
of
D.
with
【单选题】Practice is a good way to ___listening and speaking.
A.
notic
B.
neglect
C.
decrease
D.
improve
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