X线能使胶片产生()A.穿透作用 B.荧光作用 C.感光作用 D.电离作用 E.脱水 发布时间:2017-07-15 12:29 │ 来源:www.tikuol.com 题型:单项选择题 问题: X线能使胶片产生()A.穿透作用B.荧光作用C.感光作用D.电离作用E.脱水作用
题型:单项选择题 –How well she sings! ---Yes, she has a very sweet ____________.A.voiceB.soundC.noiseD.mouth 查看答案
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