如图是观察唾液淀粉酶消化作用的实验实验后�两支试管中各加入2滴碘液出现的现象分别是 A.a试管变蓝色b试管不变色b.a试管不变色b Template




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tomski如图是观察唾液淀粉酶消化作用的实验实验后�两支试管中各加入2滴碘液出现的现象分别是 a.a试管变蓝色b试管不变色b.a试管不变色b coloring