问题
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According to the passage, which of the following is true of acid rain?A.Tree leaves die of
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Which of the following is mentioned in tile passage?A.A strict law against computer crimes
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According to the passage, which of the following is a tree statement about sectional confl
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Which is NOT true among tile following statements?A.Half a century ago, most people lived
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Which of the following sentence is an elliptical sentence(省略句)?A.On the top of the tree
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Which of the following words is entirely arbitrary?A.tree.B.typewriter.C.crash.D.bang.