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【单选题】

具有社群行为的一组动物是(  )
①松毛虫②金丝猴③黑猩猩④蜜蜂.

A.
①②③
B.
①②④
C.
①③④
D.
②③④
题目标签:松毛毛虫黑猩猩
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A.
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B.
the gibbon is only three feet high but it is heavier than the orangutan
C.
the orangutan is smaller than the gorilla and cleverer than the gibbon
D.
the orangutan can stand up to a great height, but others cannot

【单选题】猪是旋毛虫的什么宿主

A.
中间宿主
B.
终末宿主
C.
先终末宿主,后中间宿主
D.
先中间宿主,后终末宿主
E.
转续宿主
F.
补充宿主

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A.
music should replace language as the major arena of animal research
B.
animal experiments are more often than not cruel and inhuman
C.
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D.
the experiment with music may help scientific research on animals