问题
多项选择题
重点调查的主要特点有（）。
A.投入少
B.调查速度快
C.所反映的主要情况或基本趋势比较准确
D.可推断总体
E.数据精确度高
答案
参考答案：A, B, C
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重点调查的主要特点有（）。
A.投入少
B.调查速度快
C.所反映的主要情况或基本趋势比较准确
D.可推断总体
E.数据精确度高
参考答案：A, B, C
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| What do you do at the weekend? Some people like to 1 at home, but others like to go 2 a walk or play football. My friend Jack works hard in a factory during the 3 . At the weekend, he always 4 the same thing. On Saturday he 5 his car and on 6 he goes with his family to a village by car. His uncle and aunt have a farm there. It isn't a 7 one, but there's always 8 to do on the farm. The children help with the animals and give them their 9 . Jack and his wife help in the fields. At the end of the day, they are all 10 and Jack's aunt gives them a big meal. | ||||
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