解释润滑剂的极压性？

In China, the National Holiday is a big festival and it is to celebrate the founding of the People's Republic of China by Mao Zedong in 1949.Besides from the Spring Festival, the National Holiday is the only other week-long public break from school and work.

As one of the only opportunities  for workers to go home, visit their families or to travel around the country, all hotels, tourist attractions, trains, buses and airplanes around the country are completely packed with holidaying Chinese people.

Are you sorry for not traveling during the National Day ? If you stay at home at that time, I think you are very lucky. Why? Because there are too many people everywhere. In many places of interest in China, it’s too crowded to do anything.

Look at the picture. It was too crowded on the Great Wall on October 1st, 2012. You even couldn’t take photos for you or your friends. All that we could see were people. It was reported that there were about twenty people per meter on the Great Wall. My friends told me they could see nothing but many people on the Great Wall. “We couldn’t walk if the people in front of us didn’t walk,” he said. He showed us a photo on the Great Wall. In the photo, we hardly found him out, there were too many people.

So some people give the advice that we should not have the gold week any more. But other people say no about this advice. What’s your idea of it? Are you sorry now for not traveling during the gold week? I love staying at home more than traveling next National Day.

小题1: How did the writer feel about staying at home on National Day?

A．He believed it was interesting to stay at home on National Day.

B．He believed it was boring to stay at home on National Day.

C．He felt lucky to stay at home on National Day.

D．He felt sorry to stay at home on National Day. 小题2:How many days can people have a break on the Spring Festival.

A. 5 days        B.7 days          C.10 days      D 15 days

小题3:Which of the following is TRUE about the Great Wall on National Day?

A．You could find yourself easily on the photos you took that day

B．You could walk as you like on the Great Wall

C．There were about 30 people per meter.

D．All that could you see on the Great Wall were people.小题4:Where do you think is the article from?

A．www.chinabus.com

B．www.movies123.com

C．www.chinatourist.com

D．www.storyhouse.com

男孩，9岁。尿少、血尿、头痛2天，呕吐5次，惊厥1次。体检：血压170/130mmHg，嗜睡，颈软，面部浮肿，咽赤，心肺未见异常，双下肢浮肿，胫前无指压迹。

初步诊断

阅读下文，完成文后各题。

永和九年，岁在癸丑，暮春之初，会于会稽山阴之兰亭，修禊事也。群贤毕至，少长咸集。此地有崇山峻岭，茂林修竹。又有清流激湍，映带左右，引以为流觞曲水，列坐其次。虽无丝竹管弦之盛，一觞一咏，亦足以畅叙幽情。

是日也，天朗气清，惠风和畅。仰观宇宙之大，俯察品类之盛，所以游目骋怀，足以极视听之娱，信可乐也。

夫人之相与，俯仰一世。或取诸怀抱，悟言一室之内；或因寄所托，放浪形骸之外。虽趣舍万殊，静躁不同，当其欣于所遇，暂得于己，快然自足，不知老之将至；及其所之既倦，情随事迁，感慨系之矣。向之所欣，俯仰之间已为陈迹，犹不能不以之兴怀，况修短随化，终期于尽！古人云：“死生亦大矣”，岂不痛哉！

每览昔人兴感之由，若合一契，未尝不临文嗟悼，不能喻之于怀。固知一死生为虚诞，齐彭殇为妄作。后之视今，亦由今之视昔，悲夫！故列叙时人，录其所述，虽世殊事异，所以兴怀，其致一也。后之览者，亦将有感于斯文。

小题1:下列加点词的解释，不正确的一项是（）

A．列坐其次次：旁边。

B．悟言一室之内悟：面对面。

C．终期于尽期：希望。

D．不能喻之于怀喻：明白。小题2:下列加点词的意义和用法，相同的一项是（）

A．虽无丝竹管弦之盛

B．所以游目骋怀

虽趣舍万殊所以兴怀

C．引以为流觞曲水

D．及其所之既倦犹不能不以之兴怀                         后之览者

小题3:下列对上文内容的分析和概括，不正确的一项是（）

A．文章前一部分主要是叙事和写景。先叙述集会的时间、地点，然后点染出优美的自然环境。

B．文中的描写富有诗情画意，作者的情感也是平静、闲适。

C．文章后一部分主要是抒情议论，表现的是乐与忧、生与死的感慨。

D．文章中，作者生发出珍惜时间、眷恋生活、热爱文明的思考，总体表现了一种感伤情绪。小题4:把下列句子翻译成现代汉语。

①群贤毕至，少长咸集。

②夫人之相与，俯仰一世。

③固知一死生为虚诞，齐彭殇为妄作。

国际单位制中温度的单位、单位符号及单位的定义是什么？

真次生体腔