问题
选择题
You look cool ______white trousers and a blue shirt, and the yellow blouse and the red skirt look
nice_____ her. [ ]
A. on, in
B. in, on
C. in, in
D. on, on
答案
答案：B
搜题请搜索小程序“爱下问搜题”
You look cool ______white trousers and a blue shirt, and the yellow blouse and the red skirt look
nice_____ her. [ ]
A. on, in
B. in, on
C. in, in
D. on, on
答案：B
下列事实用微粒的知识解释正确的是……………………………………………( )
| 选项 | 事 实 | 解 释 |
| A | 盐酸和稀硫酸具有相似的化学性质 | 盐酸和稀硫酸中都含有酸根离子 |
| B | 水结冰后浮在水面上 | 水分子间间隔变小 |
| C | 煤气泄漏会导致中毒 | 一氧化碳分子有毒 |
| D | 氯化钠固体不能导电 | 氯化钠固体中没有离子 |