问题
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The shuttle exploded in the air suddenly and broke into ______ at once.A.diversityB.fragme
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What was the possible reason for the shuttle thsaster?A.Columbia could not survive reentry
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What was the possible reason for the shuttle disaster?A.Columbia could not survive reentry
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The space shuttle【D1】______ made a rare night landing at the Kennedy Space Centre early on
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Whats the main idea of the news item?A.The launching of the space shuttle Discovery has be
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Whats the problem of space shuttle Discovery?A.The space shuttle can"t reenter the earth"s