等离子弧切割有()方法。A、普通等离子弧切割 B、水再压缩等离子弧切割 C、空气等离

题型:多项选择题

问题:

等离子弧切割有()方法。

A、普通等离子弧切割

B、水再压缩等离子弧切割

C、空气等离子弧切割

D、专用等离子弧切割

考点:建设工程技术与计量(安装工程)第一节切割和焊接第一节切割和焊接题库
题型:多项选择题

Yucai Middle School will have a School Day on Friday.Students don't need to have any classes.Instead,they are going to do a lot of things for fun.Here is a poster for it.

The most wonderful game of the year

Meet our school basketball stars

Basketball Court 3:00 p.m.— 5:00 p.m.

Tel:375 — 7682

 Water Sports

It's really cool!

Xingsha Beach The whole afternoon

Tel:375 — 7442

Talent Show

Are you good at singing,dancing,acting or playing the guitar?

Come and show yourself!

Music Hall 7:00 p.m.— 9:00 p.m.

Tel:375 — 9876

Chess is fun!

Different kinds of chess

Who will win at last?

Chess Club  8:00 a.m.— 10:30 a.m.1:00 p.m.— 3:30 p.m.

Tel:375 — 7465

For further information,please call the school office.Just do it! Enjoy yourself!

小题1:You can _______  in the morning or in the afternoon.

A.have the chess competition

B.go to the talent show

C.watch the basketball game

D.have water sports小题2:If you want to see the school basketball stars,you can go at _______.

A.8:00 a.m.— 10:30 a.m.

B.3:00 p.m.— 5:00 p.m.

C.1:00 p.m.— 3:00 p.m.

D.7:00 p.m.— 9:00 p.m.小题3:You can have water sports _______.

A.at Xingsha Beach

B.at the music hall

C.at the basketball court

D.at the chess club小题4:If you are good at singing and dancing,you should call at _______.

A.375-7682

B.375-7442

C.375-9876

D.375-7465小题5:If you want to learn about further information,what should you do?

A.See the poster.

B.Ask your classmates.

C.Call the school office.

D.Go to the school office.

题型:多项选择题

从甲地到乙地一天共有A、B两班车,由于雨雪天气的影响,一段时间内A班车正点到达乙地的概率为0.7,B班车正点到达乙地的概率为0.75.

(1)有三位游客分别乘坐三天的A班车,从甲地到乙地,求其中恰有两名游客正点到达的概率(答案用数字表示).

(2)有两位游客分别乘坐A、B班车,从甲地到乙地,求其中至少有1人正点到达的概率(答案用数字表示).

题型:多项选择题

自身免疫

题型:多项选择题

涉密单位应对聘用的保安和临时工进行保密教育培训。

题型:多项选择题

社会信用管理完善的()是建设现代市场体系的必要条件,也是规范市场经济秩序的治本之策。

A.社会信用制度

B.社会管理制度

C.资金融通制度

D.经济补偿制度

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