Please ________ as soon as you get up. A

题型:选择题

问题:

Please ________ as soon as you get up.

A.pick me up

B.shut me up

C.wake me up

D.wake up me

考点:实义动词实义动词的单数第三人称形式动词短语
题型:选择题

电动机是根据______的原理制成的,它是把______能转化为______能的装置.

题型:选择题

You can’t always predict a heavy rain or remember your umbrella. But designer Mikhail Belyaev doesn’t think that forgetting to check the weather forecast before heading out should result in you getting wet. That’s why he created Lampbrella, a lamp post with its own rain sensing umbrella.

The designer says he came up with the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy(伞蓬)built into a street lamp,” he said.

The Lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand. Sensors(传感器)then ensure that the umbrella offers pedestrians (行人) shelter whenever it starts raining.

In addition to the rain sensor, there’s also a 360° motion sensor on the fiberglass street lamp which detects whether anyone is using the Lampbrella. After three minutes of not being used the canopy is closed.

According to the designer, the Lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lightning strike. Each Lampbrella would offer enough shelter for several people. Being installed at 2 meters off the ground, it would only be a danger for the tallest of pedestrians.

While there are no plans to take Lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department, and insists this creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

小题1:For what purpose did Belyaev create the Lampbrella?

A.To predict a heavy rain.

B.To check the weather forecast.

C.To protect people from the rain.

D.To remind people to take an umbrella.小题2:What do we know from Belyaev’s worlds in Paragraph 2?

A.His creation was inspired by an experience.

B.It rains a lot in the city of Saint Petersburg.

C.Street lamps are protected by canopies.

D.He enjoyed taking walks in the rain.小题3:Which of the following show how the Lampbrella works?

A.motor→canopy→sensors

B.sensors→motor→canopy

C.motor→sensors→canopy

D.canopy→motor→sensors小题4:. What can be inferred from the last paragraph?

A.The designer will open a company to promote his product.

B.The Lampbrella could be put into immediate production.

C.The designer is confident that his creation is practical.

D.The Lampbrella would be put on show in Moscow.

题型:选择题

2011年5月初,我市某县一副县长酒后驾车将受到法律追究。交警常用一种“酒精检测仪”检查司机是否酒后驾车。其反应原理为C2H5OH+4CrO3+6H2SO4==2X+2CO2↑+9H2O反应中红色的CrO3转化为绿色的化合物X,则X的化学式为[ ]

A.Cr2O3

B.CrSO3

C.Cr2(SO4)3

D.Cr2S3

题型:选择题

在流行性腮腺炎的控制措施中,对一般接触者可不检疫,但对集体儿童、学校、部队的接触者应检疫几周

A.1周
B.2周
C.4周
D.3周
E.5周

题型:选择题

复水系统凝液泵透平备用前,下列不正确的是()。

A.预热

B.解扣及超速试验

C.低速运转

D.轴承箱加润滑油

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