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【单选题】
以下为实验动物的常用接种途径，但不包括A.
接种
B.
皮下接种
C.
鼻腔接种
D.
静脉接种
E.
脑内接种
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举一反三
【简答题】完形填空 When I come across a good article in reading newspapers, I often want to cut and keep it.But just as I am about to do so, I find the article on the __ 1 __ side is as much interesting.It may be a...
【单选题】Seeing her father come back, ______.
A.
tears ran down her cheeks
B.
her tears ran out
C.
she burst into tears
D.
tears burst into her
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