同质风险的含义（）。A、同一个物品 B、发生事故的概率一样 C、导致的结果一样 D、

“青春让每个人都开花一次，但不担保每个人都结一次果。能不能结果往往取决于当你还是一朵花的时候。” 岑桑的名言启示我们：

①要珍惜青春年华，让自己的青春开花吐艳

②每个人都会在青春年代成为有才华的人

③青春是盛开的花朵，我们不仅要让她散发迷人芳香，更要让她结出累累硕果

④要努力弹奏好青春协奏曲，使自己成为祖国需要的人才

A．①③④

B．①②④

C．②③④

D．①②③④

Are you looking for something fun and would you like to help other people in your spare time? Then join us to be a volunteer. We are a non-profit organization(非盈利组织).We have volunteer jobs for people of all ages. Anyone from 12-year-old children to people in their seventies can become a volunteer.

You can help people in many ways. Schools need help with taking care of children while their parents are working. Hospitals need volunteers to look after children while their parents see a doctor. Animal lovers can help take care of those dogs and cats without houses. There is something for everyone.

“As a volunteer, I don’t want to get anything. Seeing the children’s happy faces, I’m happy, too.” said Carlos Domingo an old woman of 62. “I often help older people learn how to use computers.” says another volunteer at the age of 18.

If everyone helps out a bit, we’ll have a better world to live in. Interested? Call us at 1-800-555-5756, or visit our website:www.activol.com.

小题1:__________ can be a volunteer.

A．Children

B．Old women

C．Anyone aged 12-70

D．Young people小题2:Carlos Domingo does volunteer work with __________.

A．animals

B．children

C．computers

D．older people小题3:We can read such a passage __________.

A．in a newspaper

B．in a storybook

C．in a picture book

D．in a textbook

给水排水管道沟槽进行回填时，要求现浇筑混凝土管渠的强度应达到()。

A.施工技术规定

B.混凝土的初凝强度

C.设计规定

D.地面承载力

在预制构件结构性能检验方法中，构件挠度可用（）进行观测。

A.百分表

B.位移传感器

C.水平仪

D.钢尺

债券按照债券偿还期限，可分为（）

A.短期债券

B.中期债券

C.中长期债券

D.长期债券