若集合A=x|-2≤x≤3，B=x|x＜-1或x＞4，则集合A∩B等于( )A．x

搜题请搜索小程序“爱下问搜题”

问题单项选择题

若集合A=x|-2≤x≤3，B=x|x＜-1或x＞4，则集合A∩B等于( )

A．x|x≤3或x＞4
B．x|-1C．x|3≤x＜4
D．x|-2≤x<-1

答案

参考答案：D

解析：A∩B={x|-2≤x＜-1}，故选D。

阅读理解

阅读小天地，根据文内容判断下列句子的正(√)误(×)。

Lily and Lucy are classmates. They're in the same class. Lily is from the U. K. and Lucy is from the U. S.

Lucy usually walks to school. Her home is not far from school. She arrives at school at 8: 00 from Monday

to Friday. She likes to play the piano.

Lily usually goes to school by bus. But sometimes she rides her bike. She always has lunch at school,

because her home is far from school. She likes to play ping-pong. She usually plays ping-pong with her friends

after school.

( ) 1. Lucy and Lily are in different classes.

( ) 2. Lucy's home is far from school.

( ) 3. Lily usually goes to school by bike.

( ) 4. Lucy likes to play the piano.

( ) 5. Lucy and Lily are from the U. S.

选择题

引起青春期的男生喉结突出，声音变粗这种现象的原因是[ ]

A．甲状腺激素

B．雌性激素

C．雄性激素

D．促性腺激素