（）可作为储存介质为天然气的压力容器进行气密性试验时所用气体。A、水 B、天然气 C

阅读理解。

     Lucy, Mary, Tom and Tony are good friends. They are in Class 4, Grade 1. Tom's favourite subject

is maths. Lucy's favourite subject is English. Mary's favourite subject is Chinese. Tony likes P.E. best.

But they don't like biology. They think biology is boring. There are many clubs in their school. Lucy can

sing well, so she joins(参加) the music club. Mary likes swimming, so she joins the swimming club. Tom

likes playing chess, so he joins the chess club. Tony likes drawing, so he joins the art club.

根据短文内容判断对错正确的写（T），错误的写（F）。

( )1. Tony's favourite subject is maths.

( )2. Lucy sings well.

(     )3. Tom joins the swimming club.

(     )4. Mary likes biology.

( )5. They are good friends.

用括号内所给动词的适当形式填空。

小题1:Betty is often seen ______(help) the old man with his housework.

小题2:He prefers ______(take) part in the public activities rather than stay at home alone.

小题3:They ______(agree) with each other, so they argued for a long time.

小题4:Animals are our friends, so ______(protect) them is our duty.

小题5:You have ______(award) a scholarship to study violin at our School of Music.

关于家庭权力结构的描述正确的是

A．家庭权力结构反映了家庭决策者的构成以及家庭成员之间的相互作用方式

B．家庭权力结构可分为4种类型

C．家庭权力结构是固定不变的

D．家庭权力结构不受情感和经济因素的影响

E．家庭权力结构不随生活周期的改变而改变

苯二氮革类药物的中枢作用机制是

A．直接激动GABA

B．增强GABA能神经功能

C．直接抑制中枢

D．直接与GABA调控蛋白结合，解除对GABA受体的抑制

E．直接促进C1ˉ内流

根据有关规定，可以不予收容教育的卖淫、嫖娼人员有（）。

A．年龄不满14周岁的

B．患有性病以外其他急性传染病的

C．被拐骗、强迫卖淫的

D．外国人