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实验动物对于某一病原体的易感性高低与病原体的种类和毒理强度有关,但实验动物特异的 免疫状态也是决定状态,一般可采用疫苗的有A.
大鼠
B.
犬
C.
猫
D.
猴
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【单选题】听力原文：W: Excuse me, does the No. 8 bus go to the Wang Fu Jing Department Store? M: No, it doesn't. You'll have to change to a No. 3 bus at Sha Tan. Or, if you don't mind walking, you can take this bus ...
A.
Go to Wang Fu Jing Department Store.
B.
Play at the Workers Club Building.
C.
Ask the way from the man.
【简答题】泵是输送和提升液体的机器。它把原动机的 __ 转化被输送液体的能量,使液体获得 _ _ 。
【单选题】听力原文：W: Excuse me, does this No. 8 bus go to the Wang Fu Jing Department store? M. No, it doesn’t. You' ll have to change to a No. 3 bus at Sha Tan. Or, if you don't mind walking, you can take this bu...
A.
Go to Wang Fu Jing Department Store.
B.
Play at the Workers Club Building.
C.
Ask the way from the man.
【简答题】CCTV anchorman Luo Jing died of cancer on June 5 ,2009 at the age of 48. In 1983 ,graduating from Beijing Broadcasting Institute, he began his career as a prime time newscaster for CCTV .Over the past...
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