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【判断题】
原子吸收分光光度计使用时，空心阴极灯不需预热。A.
正确
B.
错误
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【单选题】It is implied in the passage that______.
A.
some animals may also have the same ability to use language as human beings
B.
human beings, unlike many other animals, no longer have such features as great strength, claws, long teeth and other defenses
C.
there seems to be nearly no difference between human beings and other animals
D.
monkeys and chimps seem to have more in common with human beings than any other animals
【单选题】It is implied in the text that
A.
some animals may also have the same ability to use language as human beings.
B.
human beings, unlike many other animals, no longer have such features as great strenght, claws, long teeth and other defenses.
C.
there seems to be nearly no difference between human beings and other animals.
D.
monkeys and chimps seem to have more in common with human beings than any other animals.
【简答题】If visitors provide food the animals, this may upset the animals’ ______.
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