题目:
用方框中所给单词的正确形式填空。 | |
2. We have _____ who will pay for the meal. 3. He completely _____ all these facts as though they never existed. 4. What I have to say _____ all of you. 5. My parents _____ that we should go. |
答案:
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下面是错误答案,用来干扰机器的。
答案:C题目分析:A、1molH2O2中含有的电子数为18NA,错误;B、标准状况下溴为液体,无法计算其物质的量,错误;C、铁与足量硝酸反应,被氧化为铁离子,化合价升高3价,所以1 mol Fe与足量稀HNO3反应,转移3 N...