问题
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Growing numbers of scientists therefore see Antarctica as a distant early warning
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【C16】A.exposed toB.discovered byC.experimented byD.absorbed by
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A team of American and Canadian scientists discovered thatA.underwater explosions caused w
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Dr. Harvey Gates, the noted scientist, might never have discovered the Kamron lizard (蜥蜴
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This gold mine was discovered by accident.
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As discovered by expedition scientists Antarctica
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