问题
选择题
This coat ______ nice. Would you like to try it on?[ ]
A. tastes
B. smells
C. sounds
D. looks
答案
答案:D
This coat ______ nice. Would you like to try it on?[ ]
A. tastes
B. smells
C. sounds
D. looks
答案:D
用图中所示的装置进行实验,实验现象与预测不一致的是
①中的物质 | ②中的物质 | 预测现象 | |
A | 浓氨水 | FeCl3溶液 | ②中有红褐色沉淀 |
B | 浓氨水 | 浓盐酸 | ③中有白烟 |
C | 浓硝酸 | 淀粉KI溶液 | ②中溶液变为蓝色 |
D | 饱和亚硫酸 | 蓝色石蕊试液 | ②中溶液先变红色又褪色 |