利用碱性差异进行分离的是（） A．小檗碱和小檗胺 B．麻黄碱和伪麻黄碱 C．苦参碱和

阅读理解。

     I am a Chinese boy. My name is Li Lei. I am twelve. My sister's name is Li Mei. She's

fourteen.'Li Mei and I are students. We like school.

     My mother is a teacher. She teaches English. My father is a policeman (警察). My young

brother's name is Li Hong. He is only four. We all like him.

1. Li Lei is _______.

A. Chinese

B. English .

C. American

2. Li Lei's sister is _______.

A. four

B. twelve

C. fourteen

3. Li Lei's mother and father are_______.

A. student and teacher

B. teacher and policeman

C. all teacher

4._______ like school.

A. Li Mei and Li Lei

B. Li Mei and his mother

C. Li Lei and his father

5. How many brothers does Li Lei have?

A. Three.

B. Two.

C. One.

A319，A320机型承运的无人陪伴儿童人数限制（）人。

急性扁桃体炎常见的并发症有（）

A.食管周围脓肿

B.扁桃体周围脓肿

C.咽旁脓肿

D.急性中耳炎

E.咽后脓肿

参保缴费、信息变更、待遇支付、关系转移接续及终止等业务经办各环节相关表格，若参保人本人无法填写的，可由（）或（）代填，但须本人（）、（）或者（）确认。

在窗体上画一个名称为Command1的命令按钮和一个名称为Text1的文本框，然后编写
如下事件过程：
Private Sub Command1_Click()
n = Val(Text1.Text)
For i = 2 To n
For j = 2 To Sqr(i)
If i Mod j=0 Then Exit For
Next j
If j＞Sqr(i)Then Print i
Next i
End Sub
该事件过程的功能是

A．输出n以内的奇数

B．输出n以内的偶数

C．输出n以内的素数

D．输出n以内能被j整除的数