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__________ the calculation is right, scientists ?
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Scientists, like other people, are always pleased to have their own ideas ______.A.validat
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The main idea of the second paragraph is that______.A.the first two phases of the wildlife
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After the first experiment, the scientists believed that______.A.Rico could figure out the
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I have no idea______we met for the first time.A.thatB.whetherC.whatD.when
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Some scientists doubted________.A.if the Gardener
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If that idea was wrong the project is bound to fail ______ good all the other ideas migh