题目

 单词拼写；根据下列句子及所给单词的首字母写出所缺单词。要求写出完整单词。（每空限填一词） 1. Many people like to s           in the sea during summer.. 2. From now on, I’ll study hard to make my d           come true. 3. Be c          . The knife is very sharp. It may hurt you. 4. Sometimes I walk to school, sometimes I r           to school. 5. I have no time to see a film with you. I’m b           with my work.制备光气的反应方程式：CO+Cl2=COCl2，已知反应速率方程ν=k[c（CO）]m×[c（Cl2）]n，k在一定温度下为定值．在某温度下进行实验，测得下列数据：求m，n，k 值（ ）实验序号c（CO）/mol．L-1c（Cl2）/mol．L-1ν/mol．L-1．s-110.1000.1001.2×10-220.1000.0506.0×10-330.0500.1006.0×10-3A．m=1n=1B．m=2n=1C．n=1.5k=0.6D．m=1k=1.2