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第1题

Sooner or later the forests will disappear ( ).(本题1.0分) A、 unless a country has a plenty supply of trees B、 u
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第2题

It.s a great pity that ( )(本题1.5分) A、 man is only interested in building empires B、 man is eager to profit fr
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第3题

Trees are useful to man mainly in three ways,the most important of which is that they can ( )(本题1.5分) A、 keep him
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第4题

If you followed the advice of the writer,you would ( )(本题1.0分) A、 be able to get the real meaning of what people s
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