实验室中下列操作正确的是 A.用镊子夹取锌粒放入直立的试管b.量液时视线与量筒的液面最低处平齐c.滴加液体时胶头滴管伸入试管口d Template




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tomski实验室中下列操作正确的是 a.用镊子夹取锌粒放入直立的试管b.量液时视线与量筒的液面最低处平齐c.滴加液体时胶头滴管伸入试管口d coloring