问题
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【C7】A.delicateB.sensitiveC.tenderD.subtle
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【C20】A.mortalB.rationalC.fatalD.vital
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The old man died of a deadly disease.A.riskyB.seriousC.fatalD.worrying
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You will be informed about any subtle changes ________ .A at the first opportunityB for
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The ________ face sends a strong emotional message: “Do Not Disturb,”a subtle sign us
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番泻苷A中两个蒽酮母核的连接位置是()A.C1—C1B.C2—C2C.C9—C9D.C10—C10E.C9—C10