人的面部有50多块肌肉，人在微笑，皱眉和做出其他面部表情时，肌肉就会伸展和收缩，你知

根据下面一篇短文的内容判断下列句子的正误，正确的用 “A” 表示，错误的用“B”表示。

     Sally was fourteen. She studied in a middle school. She liked dancing and singing and spent a lot of time

on them. But she hated maths and even decided to give it up. Her father was anxious (焦虑) about it.

     It was Sunday. Sally's father gave a call to his sister who taught maths in another school. He hoped she

would come and tell his daughter how to learn maths. The woman came and said,"You are a clever girl, Sally.

I' m sure you will soon learn maths well if you do your best"

     "I'm afraid I can't, Aunt," said Sally. "Girls can't be good at maths."

     "I don't think so," said the woman. "I was good at it when I was a girl. You must do more exercises and

try different ways to practice doing maths problems until you work them out or at least understand them

better. Here is a maths problem. Please think it over and see if you can work it out."

     "OK," said the girl. "Let me try."

     About an hour later Sally took the exercise book to her aunt and said, "I've tried several times and worked

out the problem at last!"

     "Well done!" her aunt looked at her answer and said happily, "Now you see, maths is not as difficult as

you thought."

( )1. Sally tried her best to learn maths but could not learn it well.

( )2. Sally spent much more time in singing and dancing than in learning maths.

( )3. Her aunt didn't think that girls could be good at maths.

( )4. The father asked his sister to teach his daughter how to learn maths.

( )5. Sally worked out the problem at last

简述有效进行知识概括的基本方法。

对填充惰性气体的注射剂品种应检查的特殊项目为

A．pH值
B．碘值
C．装量
D．惰性气体填充量
E．安瓿空间残余含氧率

女患者，46岁，近1年来时感心中烦乱，情志恍惚，睡眠不安，时悲时喜，哭笑无常，口干便结。舌红苔少，脉细数。

对该病人治疗原则应是（）

A.清热泻火为主

B.滋阴降火为主

C.甘润滋养为主

D.清心泻热为主

E.温补肾阳为主

高压气机的巡检内容有哪些？