综采工作面照明的规定()。A、必须有足够的照明B、照明设备的额定电压不应超过127V

题型:多项选择题

问题:

综采工作面照明的规定()。

A、必须有足够的照明

B、照明设备的额定电压不应超过127V

C、固定敷设的照明电缆应采用不延燃橡套电缆或铠装电缆,非固定敷设的采用不延燃橡套电缆

考点:综采维修电工综采维修电工(综合练习)综采维修电工(综合练习)题库
题型:多项选择题

文件型病毒传染的对象主要是什么类型文件________。

A..DBF

B..BAK和.WPS

C..COM和.EXE

D..EXE和.WPS

题型:多项选择题

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Hong Kong Bans Smoking

Do you plan to go to Hong Kong Disneyland with your family? If your dad smokes, you must ask him to be careful. 小题1:         The new law went into effect on Monday, and heavy fines(罚金) will be imposed on anyone who breaks it. The places include restaurants, workplaces, schools and karaoke rooms. 小题2:         

Public response has been mixed. Smoking is now banned in public spaces in Hong Kong.

Many Hong Kong residents are in favor of the new regulation, however. Hong Kong hopes the ban can prevent passive smoking. 小题3:         And it’ll be better if more people in Hong Kong give up smoking because of the ban.

Hong Kong has 7 million people.小题4:         

Amy Choi, 27, a student, agrees to the smoking ban. ‘ I don’t like people smoking next to me. It’s so smoky and smelly,” she said.

Warning signs are now clearly visible in most public places such as beaches, stadiums, parks, and playgrounds. Some owners of bars and restaurants say that although the new ban may have negative effect on their business, they will still stop their customers from lighting up. If someone breaks the ban, he will have to pay up to HK$5,000.

小题5:         On January 1,2006, Singapore banned smoking in most public places.

A.Hong Kong is not the first Asian city to have a smoking ban.

B.When you stay with a smoking person, you will feel light-hearted.

C.From January 1,2007, Hong Kong bans smoking in most public places.

D.Even smoking in some outdoor places like beaches, sports grounds, museums and parks is against the law.E.Among them, about 840,000 people aged 15 or above are smokers.

F.It does great harm to people’s health.-

G.You can smoke anywhere except Hong Kong in 2008.

题型:多项选择题

运算符函数调用格式的表达式:y/x++与表达式:y.operator/(operator++(x,O))含义相同,由此可看出()。

A.“/”和“++”都是作为成员函数重载的

B.“/”和“++”都是作为非成员函数重载的

C.“/”是作为成员函数重载的,“++”是作为非成员函数重载的

D.“/”是作为非成员函数重载的,“++”都是作为成员函数重载的

题型:多项选择题

对比初级知识获得与高级知识获得的差别,并分析其教学启示。

题型:多项选择题

为什么农民在丰收时收益反而会有可能降低?

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