题型:选择题 — ________? —My arms hurt. [ ]A. What's the matter B. What are theyC. Do you feel tired D. How is the boy
题型:问答题 工业生产中常利用电解反应来制取新的物质,填写下表中电解各物质时阳极(和电源正极相连的极)、阴极(和电源负极相连的极)所得产物的化学式.饱和食盐水 阳极产物是______氯化铜溶液 阴极产物是______. 查看答案