问题
选择题
-You look so worried. What's the matter?
-I don't know________ these boring problems.[ ]
A．what to deal with
B．how to do with
C．what can I do with
D．how to deal with
答案
答案：D
搜题请搜索小程序“爱下问搜题”
-You look so worried. What's the matter?
-I don't know________ these boring problems.[ ]
A．what to deal with
B．how to do with
C．what can I do with
D．how to deal with
答案：D
下列表格中的各种情况，可以用如图所示曲线表示的是
| 选项 | 反应 | 纵坐标 | 甲 | 乙 |
| A | 相同质量的氨气，在同一容器中发生反应：2NH3 N2＋3H2 | 氨气的转化率 | 500 ℃ | 400 ℃ |
| B | 等质量的钾、钠分别与足量的水反应 | H2的质量 | 钠 | 钾 |
| C | 在体积可变的恒压容器中，体积之比为1∶3的N2、H2：N2＋3H2 2NH3 | 氨气的浓度 | 活性高的催化剂 | 活性一般的催化剂 |
| D | 2 mol SO2和1 mol O2在相同温度下发生反应：2SO2＋O22SO3 | SO3的物质的量 | 2个大气压 | 10个大气压 |