健康人在中等强度运动中心率增加较少

以下哪种因素不影响膜脂的流动性（）

A.膜脂的脂肪酸组分

B.胆固醇含量

C.糖的种类

D.温度

E.以上都不对

干燥机润滑油泵是（）。

A.离心泵

B.齿轮泵

C.柱塞泵

阅读理解。

     Finding summer jobs for teenagers has not always been easy, but now you no longer have to worry

about what your kid can do to earn their own money. Recently I found some different sites online that offer

information about what kids can do. Below is some of that information, along with questions to think about

to help you come up with your own ideas. Ideas for summer work:

● Parks and Recreation Programs.

● Babysitting (当临时保姆) during the day of school.

● Working part-time at a day care for the summer.

● Car washing.

● Working at local vegetable stands.

     The easiest way for you to find ways for your child to make money is to think about others' inconveniences

(不方便). Think of things you need done, or would like to have done, and what you would consider paying

for these things to get done. Once you have some ideas, you can sit down with your child and talk to them

about what they would be interested in doing. Then once you have an idea of what they want to do you can

help them come up with fair prices.

     Preferably you would want to only have your child working with people you know and trust, or in the least

bit you could have your child pick a partner. That way with each of them carrying cell phones, even those

without service can call 911, they will be much safer.

     You can find out more information and many more ideas for kids to use to make money during their summer

holidays by visiting http://www.kidswantmoney.com

1. The author wrote the passage to _____. [ ]

A. share his discoveries online

B. introduce jobs for teenagers

C. advertise a website for teenagers

D. talk about his summer work experience

2. Which of the following is NOT considered when teenagers look for summer jobs? [ ]

A. Who they'd better work for.

B. How much should be charged.

C. Whether the jobs are safe. D. Where the workplace is.

3. What can we learn about http://www.kidswant-money.com? [ ]

A. The author set up the website.

B. It gives information about educating children.

C. People need to pay to visit the website.

D. It offers ideas for children to make money.

小容量晶体管调速器电路中的电压负反馈环节由（）、R3、RP6。

A、R7

B、R9

C、R16

D、R20

根据《城乡规划法》的有关规定，下列关于建设用地规划管理的程序内容表述中符合规定的是( )。

A．城市、县人民政府城乡规划主管部门不得在建设用地规划许可证中，擅自改变作为国有土地使用权出让合同组成部分的规划条件

B．城乡规划主管部门对建设用地申请的有关材料，经审核后符合城乡规划要求的，向建设单位核发建设用地规划许可证及其附件

C．城乡规划主管部门对于建设用地申请，主要是先后进行程序性审核和实质性审核

D．以出让方式取得国有土地使用权的建设项目用地，地块出让前，城乡规划主管部门应提供建设项目工程总平面图，作为国有土地使用权出让合同的组成部分

E．对于不符合城乡规划要求的建设用地项目，不得发放建设用地规划许可证，但要说明理由，直接给予口头答复