下列基本操作正确的是 A.手持试管给试管里的物质加热 B.用燃着的酒精灯去点燃另一只酒精灯 C.用天平称量药品时用手直接拿砝码 D.用 Template




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tomski下列基本操作正确的是 a.手持试管给试管里的物质加热 b.用燃着的酒精灯去点燃另一只酒精灯 coloring