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【多选题】
下列属于离散型变量的有A.
粮食产量
B.
人口年龄
C.
职工工资
D.
人体身高
E.
设备台数
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【简答题】单项选择 1. In the past, David in the country. A. have lived B. has lived C. lived D. lives 2. We have different forms of transport fifferent times. A. at B. in C. for D. on 3. My sister...
【简答题】Choose the best answer. 单项选择。 l. What do you eat for breakfast? [ ] A. I eat toast and jam. B. Yes, I eat milk. 2. Would you like some bread? [ ] A. No, thanks. B. Yes, I have some noodles. 3....
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