设计统计指标时,应力求满足()的要求。
A.目的性
B.统一性
C.可量性
D.可比性
E.预测性
参考答案:A,C,D
句型转换
1. They played tennis last week. (对画线部分提问)
_______did they_______last week?
2. He went to New York. (改为否定句)
He_______to New York.
3. What was he? (改为同义句)
_______he____?
4. He worked on it for five years. (对画线部分提问)
___________________________________________
5. He had a meal of chicken and rice. (改为否定句)
________________ __________________________
在Windows环境下,工具栏中用于完成复制操作的按钮是( )。
A.
B.
C.
D.