问题
选择题
You shouldn't always fight with your classmates, you should _______ with them. [ ]
A. call up
B. keep out
C. get on well
答案
答案：C
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You shouldn't always fight with your classmates, you should _______ with them. [ ]
A. call up
B. keep out
C. get on well
答案：C
如下图所示，在小烧杯乙和丙内分别放入不同的物质后，立即用大烧杯甲罩住小烧杯乙和丙。下列有关实验现象正确的是
| 烧杯乙 | 烧杯丙 | 观察到的现象 | |
| A． | 浓盐酸 | 紫色石蕊 | 丙中液体慢慢变蓝 |
| B． | 浓盐酸 | 硝酸银 | 丙中产生白色沉淀 |
| C． | 浓硫酸 | 氯化钡 | 丙中产生白色沉淀 |
| D． | 浓氨水 | 无色酚酞 |