题干

“感动中国”2011年度获奖者——刘伟,10岁时被截去双臂,14岁获得全国残疾人游泳锦标赛金牌;22岁成为世界上用脚打字最快的人;23岁用钢琴征服了维也纳金色大厅的观众。他面对挫折的态度告诉我们(  )

A:应该勇敢面对生活中的挫折

B:直面苦难就能活的成功

C:人生的价值就在于战胜挫折

D:成功者最应该感谢苦难

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答案(点此获取答案解析)

A

同类题1

阅读下面短文,并回答问题.

电磁波在生活中的应用

1947年,第一台微波炉问世,微波炉就是用微波来煮饭烧菜的.微波很有“个性”,一碰到金属就发生反射,金属根本没有办法吸收或传导它;但微波可以穿过玻璃陶瓷、塑料等绝缘材料,且不会消耗能量;而含有水分的食物,微波不仅能透过,其能量也会被吸收.微波炉正是利用微波的这些特性制作的.微波炉的外壳用不锈钢等金属材料制成可以阻挡微波从炉内逃出,以免影响人们的身体健康,装食物的容器则用绝缘材料制成,微波能透食物,并使食物中的水分子也随之运动,剧烈的运动产生了大量的热能,于是食物“煮”熟了.这就是微波炉加热的原理

2009年4月29日,国家重大科技基础设施建设项目﹣﹣上海同步辐射光源竣工.

同步辐射光源具有波长范围宽、亮度高等一系列优异的特性,被科学家称为“为人类文明带来革命性推动的新光源”.

光的波长决定了它与物质的相互作用类型,如“可见光”照射人体时,会反射到我们的眼睛,被视神经所感觉而“看到”人体;而X射线光照射人体时,则会穿透人体,并在X光底片上留下穿透程度的影像记录.

光波具有衍射现象,用光探测物体时,光的波长应当与物体的大小相近或更短.如要“看清”金属原子等微观物体,必须选用与这些微观物体大小相近或更短的波长的光束.科学家利用光束在物质中的衍射、折射等特性来探究未知的微观世界.

(1)在微波炉中应选用下列哪种容器来加热饭菜____ 

A.不锈钢盆子   B.铁盆子   C.玻璃盆子   D.铜制盆子

(2)微波在真空中传播速度是____ m/s,微波____ 能量(选填“具有”或“不具有).

(3)为安全使用微波炉应选用____ 孔插座,微波炉的外壳可以用 不锈钢 材料制成(选填“塑料”、“不锈钢”或“陶瓷”).

(4)红外线的波长比紫外线的波长____ ,某种红外线的波长为6.0×10﹣5m,它的频率为____ Hz.

(5)用放大倍率很高的普通光学显微镜也看不见原子等微观物体,其原因是____ .

同类题5

根据短文理解,选择正确答案。

Top 5 Must See Places in Beijing

    Beijing is an old capital city with a lot of tourists attractions. What is the most representative place in Beijing? The answers are various. Here are the Top 5 Must See Places in Beijing.

1) Forbidden City

    The Forbidden City is the ideal place for you to begin your exploration of Beijing. Make sure to wear comfortable shoes as you have to walk a lot! A multilingual guide recorder is recommended, as it can tell you the stories behind the palace.

Opening Hour: 8:30-17:00

Entrance Fee: RMB 60

2) Tian'anmen Square

    Lying in the heart of Beijing City, it is the place for massive parades and gathering. It boasts of the largest square of such kind in the world. At sunrise and sunset the raising and lowering ceremony of the Chinese National Flag is well worth seeing.

Ticket fees: Free

Opening Time: Whole Day

3) Great Wall

    Most of the sections of the Great Wall in Beijing are well-preserved, and the most famous section is Badaling. For the Great Wall hiking, get ready for strong footwear. For hot weather, please also prepare sunblock, sunglasses and water.

Badaling Great Wall:

Ticket Fees: RMB40 (Nov. 01 to Mar. 31); RMB 45 (Apr. 01 to Oct. 31)

Open Hours: 6:40 to 18:30

4) Summer Palace

    Regarded as the largest imperial garden in China, the Summer Palace is in fact a park-styled royal retreat. With masterly design and artistic architecture integrating the highlight of Chinese garden arts, it has earned a title of "Royal Garden Museum".

Open Time: 6:30-20:30

Ticket Fee: RMB 40 (low season) / RMB 50 (peak season during the holidays)

5) Temple of Heaven

    The Temple of Heaven worked as sacrificial compound buildings for the Ming and Qing emperors. What's the intriguing by-production of the temple is that if you enter the Temple of Heaven in the early morning, you can find many people doing all types of Kungfu, Taiji, dancing and other morning exercises.

Open Time: 6:00-21:00

Ticket Fee: RMB 35