()的加热温度是150~250℃。 A.低温回火 B.中温回火 C.高温回火 D.超

题型:单项选择题

问题:

()的加热温度是150~250℃。

A.低温回火

B.中温回火

C.高温回火

D.超低温回火

考点:井下作业工具工井下作业工具工(初级)井下作业工具工(初级)题库
题型:单项选择题

Exploit your parking space

An unused parking space or garage can make money. If you live near a city center or an airport, you could make anything up to £200 or £300 a week. Put an advertisement(广告)for free on Letpark or Atmyhousepark.

Rent(出租)a room

Spare room? Not only will a lodger(房客)earn you an income, but also, thanks to the government-backed “rent a room” program, you won’t have to pay any tax on the first £4500 you make per year. Try advertising your room on Roomspare or Roommateeasy.

Make money during special events

Won’t want a full-time lodger? Then rent on a short-term basis. If you live in the capital, renting a room out during the Olympics or other big events could bring in money, Grashpadder can advertise your space.

Live on set

Renting your home out as a “film set” could earn you hundreds of pounds a day, depending on the film production company and how long your home is needed. A quick search on the Internet will bring up dozens of online companies that allow you to register your home for free—but you will be charged if your home gets picked.

Use your roof

You need the right kind of roof, but some energy companies pay the cost of fixing  solar equipment(around£14,000), and let you use the energy produced for nothing. In return, they get paid for unused energy fed back into the National Grid. However, you have to sign a 25-year agreement with the supplier, which could prevent you from changing the roof.

小题1:

If you earn £5000 from renting a room in one year, the tax you need to pay will be based on ______.

A.£800

B.£500

C.£4500

D.5000小题2:

Where can you put an advertisement to rent out a room during a big event?

A.On Letpark.

B.On Roomspare.

C.On Grashpadder.

D.On Roommateeasy.小题3:

If you want to use energy free, you have to_____.

A.sign an agreement with the government

B.pay around £14,000 for the equipment

C.sell the roof to some energy companies

D.keep the roof unchanged for within 25 years小题4:

For whom the text most probably written?

A.Lodgers.

B.Advertisers.

C.House owners.

D.Online companies

题型:单项选择题

下列各项表述中与示意图一致的是(  )

A.图①表示第三周期元素原子半径的变化规律

B.图②a、b曲线分别表示反应:CH2=CH2(g)+H2(g)→CH3CH3(g)△H>0,在使用和未使用催化剂时,反应过程中的能量变化

C.图③所示实验可比较硫、碳、硅三种元素的非金属性强弱

D.图④两个装置中通过导线的电子数相同时,消耗负极材料的物质的量也相同

题型:单项选择题

一个好的供应商需要具备()。

A.企业生产能力强

B.企业赢利能力强

C.企业管理水平高

D.企业服务水平高

E.企业技术水平高

题型:单项选择题

下列情况下应考虑色素痣恶变,除了()

A.直径>5cm

B.局部有发痒、疼痛的症状

C.表面破溃,出血或形成溃疡

D.病变四周出现小的卫星状痣

E.边界模糊

题型:单项选择题

阀门驱动方式代号(第2单元)为“8”,代表阀门驱动方式为()。

A.电动

B.电磁动

C.气动

D.气—液动

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