运用投影原理，根据平面图如图13，试画出立面图的草图（垂直管段部分长短自定）。

土地

已知1＜x＜2，则|2-x|+|1-x|=______．

客户翁先生通过农业银行指定网点购买一款券商集合理财计划产品，该产品投资范围为国债、短期金融债、高评级企业债、定期存款等固定收益类产品，该产品最低认购金额为（）。

A．3万元

B．5万元

C．10万元

D．15万元

The parents seemed satisfied with the news __________ their son had been employed by a large company.

A．what

B．which

C．that

D．when

阅读理解。

     Summer is almost here, which means it is time to sign your kids up for swim classes again at the

Community Pool. Classes begin on Monday, May 1, and will continue throughout the summer. Fifteen

swim classes are being offered. Each class lasts ten hours. A new class starts each week of the summer.

Each class costs $20. The pool is big enough for six students per class.

     Classes will increase in difficulty each week. The first week is for children up to six years old. The last week is for advanced swimmers who want to improve their race skills.

     Students can sign up for as many classes as they like, but they must pass the skills level test. For

example, students who sign up for Level 4 (Stroke Readiness) must show their certificate for completing

Level 3 or must demonstrate the front crawl and backstroke. Children cannot sign up for a level they are

not ready for. Children who have never attended Community Pool classes must show up April 29 or 30

for a swim skills evaluation. Instructors will rate the students and assign them to a particular skill level.

     Swim classes are fun for all. Children learn new skills and make new friends. Parents get to meet other parents in the community. Swimming, like bicycling, is a healthy and valuable skill that, once learned, is

never forgotten.

     "It's a joy to teach young children," said Ginger, the lead instructor for swimming programs. "More than half of them are terrified when we put them into the water the first time. Two months later, they're begging

their parents to go to the pool every day."

1. The purpose of the text is to __________.

A. introduce some basic knowledge about swimming to children

B. inform the students the time and place for the swim classes

C. encourage parents to take their children to attend the swim classes

D. invite more experienced instructors to work for the Community Pool

2. The students will be divided into different classes ________.

A. considering their swimming skill levels

B. because they are of different ages

C. in the order of the time they sign up

D. according to their swimming certificates

3. We can learn from the last two paragraphs that _______.

A. most children are forced to attend the swim classes

B. parents find it boring to take their children to the pool

C. both parents and children benefit a lot from the swim classes

D. the instructor doesn't enjoy the swimming programs