牡丹花刀是在鱼体两侧斜剞弧形刀纹,深至椎骨,鱼肉翻开呈花瓣形。( )
参考答案:对
下图是电解NaCl溶液(加有酚酞)装置,其中c、d为石墨电极。下列有关的判断正确的是
A.a为负极、d为阳极
B.c电极上的电极反应式为:2H+ + 2e一="=" 2H2↑
C.电解过程中,d电极附近溶液变红
D.电解过程中,氯离子浓度不变
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