青藏高原上的气候冬寒夏凉，无霜期短，但有太阳辐射强、（）和（）的特点，对农业生产有利

A ten-year-old teacher

　　How young can a teacher be?  A teacher can be any age. Just ask Chrissie Mckenney. She was only 10 when she started teaching.

　　 Ｈow did Chrissie get the job It was not easy. Chrissie wanted to help children who can't hear. But the school had never had such a young helper. Could Chrissie do it

First, Chrissie learned to sign. Signing is a way of talking with your hands. Soon it was easy for Chrissie to talk to the children. So the school let her help. Now Chrissie visits the school almost every day. The children love their young teacher. She is their friend.

小题1:Chrissie wanted to help children who can't______.

A. hear 　　　　　　  B. See　　　　　        C. play

小题2:This story tells about a______.

A. special class 　　 B. young teacher      Ｃ. silly person

小题3:In the third part of the story, what does the word "sign" mean______

A.看　　  B. 手势         C. 听

小题4:The school let Chrissie help because she ____.

A. was too old         B. could sign 　　　 　C. could not hear

小题5:You can guess from the story that most teachers ______Chrissie.

A. are older than    　B. do not like 　     C. are just like

常用的态度测量方法有（）。

A.投射法

B.统计法

C.量表法

D.行为反应测量法

看病难是农民最关心的问题之一。目前，我国农村医疗卫生资源短缺，农村每千人的病床数为0.79张，仅为城市的32.9%，乡镇卫生院人员中，本科毕业生仅占1.6%。为此，我国政府提出，要加强农村的医疗卫生工作。从国体上看，政府重视农村医疗卫生工作是因为[ ]

A、对人民负责是政府活动的基本原则

B、党代表最广大人民群众的根本利益

C、政府是人民意旨的执行者和利益的捍卫者

D、个人利益与国家利益在根本上是一致的

引无盐水进除氧槽建立液位，当除氧槽液位达到（），则停止进水

A、30％

B、50％

C、60％

D、80％

什么是焊缝的热裂纹？