我国社区教育活动一般在()进行 A.街道或居委会 B.区委 C.幼儿园 D.托儿所

题型:单项选择题

问题:

我国社区教育活动一般在()进行

A.街道或居委会

B.区委

C.幼儿园

D.托儿所

考点:学前教育学学前教育学综合练习学前教育学综合练习题库
题型:单项选择题

按现行制度规定,不能在"应收票据"科目下核算的票据包括()。

A.银行汇票

B.银行本票

C.商业承兑汇票

D.支票

题型:单项选择题

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:单项选择题

孤立危险标的特征是()。

A.标身为黑红黑竖纹

B.标身为红黑红竖纹

C.标身为红黑红横纹

D.标身为黑红黑横纹

题型:单项选择题

球磨机运转时,主轴承的油温不超过()。

A、40℃

B、50℃

C、60℃

D、80℃

题型:单项选择题

某生态学家对某水生生态系统的营养结构和能量流动情况调查后,得到了甲图所示的食物网和乙表中的能量数据,请分析回答:

如果去除该生态系统中的浮游动物和双翅目幼虫,则鲈鱼的产量将()。

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