题目内容

The example of tadpoles, fish eggs and waterfowl is used to show that the activities of man could give rise to ______.

A. protecting the enviornment
B. helping to balance nature
C. negative chain reactions
D. killing all the living things

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A．Because he can never find a cheaper one.B．Because it is hard to find another one aro

A. Because he can never find a cheaper one.
Because it is hard to find another one around that place.
C. Because it has very convenient facilities.
D. Because he will come back soon.

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A．Try some herbal plants.B．Go to the beauty salon.C．Have a cosmetic surgery.D．Put cucu

A. Try some herbal plants.
B. Go to the beauty salon.
C. Have a cosmetic surgery.
D. Put cucumber on his face.

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By upsetting the balance of the climax stage, man will ______ the indiscriminate hunting of whales for food.

A. encourage
B. support
C. reduce
D. prohibit

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Water pollution ______ nature's balance in oceans, lakes and rivers.

A. affects
B. can't affect
C. has nothing to do with
D. has no matter with

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The example of tadpoles, fish eggs and waterfowl is used to show that the activities of man could give rise to ______.

A. protecting the enviornment B. helping to balance nature C. negative chain reactions D. killing all the living things

A．Because he can never find a cheaper one.B．Because it is hard to find another one aro

A．Try some herbal plants.B．Go to the beauty salon.C．Have a cosmetic surgery.D．Put cucu

By upsetting the balance of the climax stage, man will ______ the indiscriminate hunting of whales for food.

Water pollution ______ nature's balance in oceans, lakes and rivers.

A. protecting the enviornment
B. helping to balance nature
C. negative chain reactions
D. killing all the living things