问题
选择题
There is ________ in his words. We should have a try. [ ]
A. something
B. anything
C. nothing
D. everything
答案
答案：A
搜题请搜索小程序“爱下问搜题”
There is ________ in his words. We should have a try. [ ]
A. something
B. anything
C. nothing
D. everything
答案：A
在一个密闭容器内X、Y、Z、Q四种物质，在一定条件下充分反应，测得反应前后各物质的质量如下表：则该密闭容器中发生的反应的基本内型属于（ ）
| 物质 | X | Y | Z | Q |
| 反应前的质量/g | 31 | 8 | 2 | 5 |
| 反应后的质量/g | 0 | 1 | 42 | 3 |
A．化合反应
B．分解反应
C．置换反应
D．复分解反应