安装立管时,主管外皮到墙面净距离与管径有关。当立管直径小于32mm时,净距离为(

题型:单项选择题

问题:

安装立管时,主管外皮到墙面净距离与管径有关。当立管直径小于32mm时,净距离为( )mm。

A.15~25

B.20~30

C.25~35

D.30~40

考点:造价工程师建设工程技术与计量(安装)建设工程技术与计量(安装工程部分)59
题型:单项选择题

sizeof(char)是( )。

A.一种函数调用

B.一个整型表达式

C.一个字符型表达式

D.一个不合法的表达式

题型:单项选择题

测试装置对单位脉冲函数δ(t)的响应,称为()记为h(t),h(t)的傅氏变换就是装置的()。

题型:单项选择题

Babysitter Wanted

I am seeking a babysitter for my 6-month-old son. A few hours on Saturdays and Sundays to help me and then other times as needed. He or she should be over 18, responsible, loving, warm, and have some experience in caring for babies. This position also suits a college student with experience looking for a part-time job. The pay is $10 an hour.

If this sounds like a good job to you, please reply to rebecharv@aol.comor call 800-4964.

Office Manager Wanted

Our company is looking for a full-time experienced manager to run the business. Strong skills in organisation and business management are required for this position. The office manager will be responsible for keeping financial (金融的) records, so he or she should be familiar with computers.

Please reply to jim@californiaaquatics.comor call 800-6978 to apply.

Waiter/ Waitress Wanted

A restaurant is looking for an experienced waiter / waitress. Knowledge of wines and experience in dining are necessary. Must work well under pressure and understand the basics of fine dining and customer service.

If you’re interested, please contact us at job-tkupe-1329358152@craigslist.orgto apply. This is a part-time job.

Office Cleaner Wanted

Looking for a Part-time job? A position in the Mississauga area needs an office cleaner! Part-time 4 hours a day from 10:00 am - 2:00 pm.

Duties include:

●Cleaning the washrooms

●Cleaning the furniture

●Sweeping the floors

●Other general cleaning Some experience is necessary. Pay:$15 per hour

Replyto:job-p3b7u-1365632206@craigslist.orgor call 800-8197.

小题1:Which of the following position is a full-time job?

A.Babysitter.

B.Office manager.

C.Waiter / waitress.

D.Office cleaner.小题2:If a college girl with some experience caring for children wants to apply for a job, where should she send an email?

A.job-p3b7u-1365632206@craigslist.org

B.job-tkupe-1329358152@craigslist.org

C.jim@californiaaquatics.com

D.rebecharv@aol.com小题3:What can we learn from the passage?

A.The office cleaner has to work three hours each day.

B.One can apply for a waiter or waitress by telephone.

C.A babysitter earns $5 more than an office cleaner per hour.

D.Experience is necessary for all these four jobs.小题4:Which of the following is necessary for a waiter / waitress?

A.Being familiar with computers.

B.Having knowledge of wines.

C.Knowing more about menus.

D.Working well with others.

题型:单项选择题

在2007年6月份广东发生的“抗洪救灾”中,几位同学找到了一张总体积为0.4m3,质量分布均匀的长方体塑料泡膜床垫,将其放入水中时,床垫有

1
4
体积浸入水中,若g=10N/kg.

求:

(1)此时床垫受到的浮力是多大?

(2)床垫的密度是多少?

(3)若被救的人的平均质量为55kg,要保证安全,该床垫上一次最多能承载多少个人?

(4)若将床垫放在水面上(不站人)将露出水面的体积部分截去,剩余部分的

1
4
体积浸入水中.如果再把露出水面的部分截去,将剩余部分投入海水中,求它排开海水的体积?(ρ海水=1.03×103kg/m3

题型:单项选择题

内耳骨迷路由后向前可分为( )( )和( )三部分.

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