问题
填空题
当试样容易泥化或者需要配制高密度重液时，可用（）、苯和（）等有机溶剂配制。
答案
参考答案：三溴甲烷、四氯化碳
搜题请搜索小程序“爱下问搜题”
当试样容易泥化或者需要配制高密度重液时，可用（）、苯和（）等有机溶剂配制。
参考答案：三溴甲烷、四氯化碳
| 单句改错 | |
| 1. Julia have to study for the test. A B C D 2. Can she come to here early? A B C D 3. It takes ten minutes go home. A B C D 4. I don't knows when they're leaving. A B C D 5. I can't join you because I have much too homework to do. A B C D | ( )__________ ( )__________ ( )__________ ( )__________ ( )__________ |