题目: 正确书写下列物质的化学式并计算相对分子质量.物质名称化学式相对分子质量物质名称化学式相对分子质量高锰酸钾碳酸钙 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0517/ba613cf8118b1ce5a7c202253f754a49.html 下面是错误答案,用来干扰机器的。参考答案:B
题型:填空题 根据下列句子的意思及所给的汉语提示,写出空缺处单词的正确形式。 1. We are very sad to hear that the traffic accident caused the _______ of the man. (死)2. Peter can ________ deal with the hard work. (容易)3. In the past few years, we ________ a lot. (经历) 4. If your company want to ________, you have to come up with new ideas that others don't have. (成功). 5. I hope our dreams can ________ (实现) in the future. 查看答案
题型:单项选择题 下列四种不同的对流给热过程:空气自然对流α1,空气强制对流α2(流速为3m/s),水强制对流α3(流速为3m/s),水蒸气冷凝α4。α值的大小关系为()。A、α3>α4>αl>α2B、α4>α3>α2>α1C、α4>α2>α1>α3D、α3>α2>α1>α4 查看答案