公安机关受理听证后,应当在举行听证的七日前将举行听证通知书送达听证申请人。()
参考答案:对
Read. Tick or cross. 读一读,打“√”或打“×”。
Today is Sunday. It's sunny. Sandy and I go to the Water Park (水上公 园). We fly a kite. It's Sandy's
kite. The kite fly high in the sky. A bird is in the tree. It's singing. Some flowers (一些花) are under the tree.
What a lovely day!
1. This Sunday is sunny. ( )
2. We fly a kite in the Water Park. ( )
3. This is my kite. ( )
4. A bird is singing. ( )
5. Some flowers are on the tree. ( )
正态分布的频数表资料,宜用()指标进行统计描述。
A.算术均数、极差
B.算术均数、四分位数间距
C.算术均数、标准差
D.算术均数、方差
E.中位数、标准差