问题
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“有毒性的”英文为()A.INFEcTIOUsB.HAZARDOUSDANGEROUSC.T0xIcD.RADIOACTIVE
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Two mineral water, please.()
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Pure feldspar is a colorless transparent mineral
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Pure feldspar is a colorless transparent mineral
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______ man can now create radioactive elements there is nothing he can do to reduce their
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___ man can now create radioactive elements there is nothing he can do to reduce their radioactivity.