题型：判断题 三氧化二镍(Ni2O3)可用于制造高能电池，其电解法制备过程如下：用NaOH调NiCl2溶液pH至7.5，加入适量硫酸钠后进行电解。电解过程中产生的Cl2在弱碱性条件下生成ClO-，把二价镍氧化为三价镍。以下说法正确的是 [ ]A．可用铁作阳极材料 B．电解过程中阳极附近溶液的pH升高 C．阳极反应方程式为：2Cl-－2e-＝Cl2↑ D．1mol二价镍全部转化为三价镍时，外电路中通过了1mol电子 查看答案
题型：判断题 患儿，男，6个月。夜惊多汗，烦躁，不安，面色不华，纳食不佳，枕秃，舌淡苔白，指纹淡。实验室检查：血钙磷乘积稍低，血碱性磷酸酶升高。诊断为佝偻病，其分期及证型是（）A.活动早期，肾精亏损B.活动早期，肾虚骨弱C.活动早期，脾气虚弱D.活动期，肾精亏损E.活动期，肾虚骨弱 查看答案
题型：判断题 用方框中所给句子完成对话。A. Well,Doctor. I went to a birthday party.B. Did you eat any ice cream?C. What's the matter with you?D. How many plates of ice cream did you eat,young man?F. What did you eat yesterday?Dr DAWES: Well, Peter. I'm sorry you're ill. 1._____PETER: I don't know, Doctor. I'm ill. I have a headache and a stomachache.Dr DAWES: Show me your tongue. 2._____PETER: Well. Doctor I...Dr DAWES: Did you eat any cake?PETER: Yes,I ate some cake.Dr DAWES: 3._____PETER: Well, yes, I did. I ate some ice cream.Dr DAWES: Did you eat any candy?PETER: Well,yes,I did. I ate some candy.Dr DAWES: Young man, tell me everything you ate yesterday evening.PETER: 4._____Dr DAWES: I see ! 5._____PETER: Only three,Doctor. But John had four. 查看答案
题型：判断题 煤的有机质主要由（）五种元素组成，它对研究煤的成因、类型、结构、性质和利用等都有十分重要的意义。A.碳、氢、氧、氟、氮B.碳、磷、氧、氯、氟C.碳、氢、氧、氮、硫D.氮、氢、氧、氯、硫 查看答案