成形车刀可一次加工零件上的成形表面,车削后的精度等级可达()。 A.IT5-IT10

题型:单项选择题

问题:

成形车刀可一次加工零件上的成形表面,车削后的精度等级可达()。

A.IT5-IT10

B.IT6-IT10

C.IT7-IT10

D.IT8-IT10

考点:数控车工考试高级数控车工高级数控车工题库
题型:单项选择题

Life is important to all of us. So we must respect our lives. When you want to run across the street to catch the bus, stop to think about it. If you do, you’ll have to pay a fine (罚款) or get hurt.

Traffic accidents killed more than 104,000 people in China last year. Chinese cities have more cars than ever. Drivers and pedestrians (行人) must work together to make the streets safer.

New traffic laws say that if people cross the street when the light is red, they can be fined as much as 50 yuan. The law has new rules for drivers and pedestrians. Drivers have to slow down when they are close to crosswalks. If people are in a crosswalk, cars must stop to let them walk.

There are rules for bus drivers, too. If bus drivers smoke, drink or make phone calls while driving, they can be fined. Buses that carry too many people are also against the law.

Pedestrians will have to walk more safely under the new law. They must cross streets at crosswalks. Also, they shouldn’t climb over the fences (栅栏) along streets.

Do you ride a bike to school? It’s not a good idea to carry classmates on the back. You could be fined 50 yuan. And stay in the bike lane (车道) when you’re riding. The big roads are for cars and buses.

Do you like to ride your uncle’s motorbike? When you put on your helmet (头盔), ask him to put one on, too. “People on motorbikes must wear helmets”, the new law says. If they don’t, they’ll have to pay 200 yuan. When you ride in cars, don’t forget to put on your seat belt, even if you’re going for a short taxi ride. It could save your life.

If you see a hit-and-run (肇事逃逸), tell the police. They may give you a reward (奖赏).

And don’t be afraid to help people to the hospital if they are hurt in an accident. Don’t worry about money. The new law says that doctors must take care of them even if they can’t pay right away.

小题1:.Don’t go across the road when _______.

A.the light is green

B.the light is red

C.the bus is leaving

D.traffic is busy小题2:.What does the word “crosswalk” mean in Chinese?

A.过马路

B.人行横道

C.立交桥

D.车行道小题3:.If you are a bus driver,  _______ while you are driving, according to (根据) the new traffic laws.

A.you can make a phone call

B.you can’t talk to others

C.you can’t smoke

D.you can drink小题4:.When you ride in a car, the first thing you must do is _______.

A.to put on the helmet

B.to pay the driver

C.to put on the seat belt

D.to see if it carries too many people小题5:.You shouldn’t  _______.

A.carry your classmate on the back when you’re riding a bike to school

B.phone the police when you see a hit-and-run

C.help people to the hospital if they are hurt in an accident

D.wear your helmet while riding a motorbike

题型:单项选择题

患者,男性,19岁,因上前牙外伤2小时就诊。对该患者应采取的应急处理措施为()。

A.开放引流

B.氢氧化钙盖髓,安抚

C.干髓术

D.三氧化二砷,氧化锌暂封

E.局部麻醉下拔髓

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采购综合培训计划编制的原则有()。

A、学为所用

B、按需施教

C、讲求实效

D、分级培训

E、公开公平

题型:单项选择题

工程项目的经济效益、社会效益研究和初步评价是在()阶段进行的。

A.投资机会研究

B.初步可行性研究

C.最终可行性研究

D.设计

题型:单项选择题

宰前收购生猪存在下列哪些现象时应进行销毁。()

A.注水生猪

B.注胶生猪

C.黄膘猪

D.黄疸猪

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