（）是一个经济体系在一定时期内最大限度可能提供的产品和劳务的总和。 A.总供给 B.

阅读理解。

     Many US kids get part-time jobs while they are in middle school or high school.  Students usually

work on weekends.  They also work in the aftemoons after school is over.  They take these jobs as a

way to make a little pocket money.

     When I was in high school, many of my friends worked at McDonald's or KFC.  It is not difficult to

learn how to cook fast food.  You can even leam to use a cash register(牧银机).  However, these jobs

are not very fun.

     Some kids are lucky to get jobs they like. A friend of mine loved animals and he got to work at an

animal shelter. My classmate Alice is good at singing and dancing. She works as a dancing teacher in an

art club.

     American parents want their kids to have work experience. But in China middle school students hardly ever get part-time jobs. They think getting good grades is always more important.

1. Students can make ____________by taking these part time jobs.

2 Students can learn ____________and____________when they work at Mc Donald's or KFC.

3..A friend of mine loved animals and he got to work at ____________.

4.  My classmate Alice____________so that she works as a dancing teacher in an art club.

5. American parents want their kids to ____________.

当调节阀前后压差较小，要求泄漏量也较小时，应选用（）调节阀。

A.直通单座

B.直通双座

C.角形

D.蝶形

肥胖的发生与年龄有关，一般在多少岁以后明显增高

A．30岁

B．35岁

C．40岁

D．45岁

E．50岁

如何教育自己的孩子，当父母的不必按照专家的意见去做，虽然这些专家中不乏当父母的。一把钥匙开一把锁，孩子们的情况千差万别。当父母的应当确信，自己是教育自己孩子的最权威的专家。 以下哪项断定最符合题干所表达的原则

A．尽管音乐理论从本质上说是有价值的，并且对有些音乐家确实有帮助，但音乐理论不能现成地用来区分某个音乐作品的优劣，因为，音乐作品从根本上涉及的是品位而不是理论。

B．一个人在购买汽车时，不必考虑汽车专家的意见，如果这些专家并不关注普通消费者的经济实力和购车需求。

C．一个登山者，如果攀登的是一座自己熟悉的高山，那么，他应该充满自信地确定最佳登山路线，而不需要了解对这座山并不熟悉的登山专家的意见。

D．春播在即，对于使用什么良种，如果一个有经验的农民和一个农科院专家的意见相左，农民应当坚持自己的选择，而不必听取农业专家的意见，即使这个专家也是农民出身。

E．如何选择自己的对象，当子女的不必听从父母的意见，尽管父母有较多的社会经验和阅历。爱情的体验只存在于两个当事人之间。年轻人应当确信，只有自己最了解什么人最适合自己。

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