古代字画能长期保存，是由于单质碳在常温下具有（    ）

根据句意和提示写出单词，完成句子。
Guilin is a very beautiful city in the s____ of China. How I want to go on a trip there!
What’s the p____ of China? It’s about 1.4 billion. China has the most people in the world.
Never forget your own country w____ you go in the future.
C ____  with the past, our life today is much better.
 —I don’t know what to do w____ my computer. It doesn’t work well again!—Why not ask Mr Jiang for help? He is a computer engineer.
After a terrible earthquake, food, water and ____ (帐篷) are needed most.
For thousands of years, the Great Wall has been the ____ （骄傲）of all the Chinese people.
You don’t like eating snacks and I don’t like eating snacks, ____ (也).
The special boots can prevent astronauts from____ (漂浮) away into space.
On the moon we could____ （容易）jump much higher than on the earth.
Tian’anmen Square is the biggest square in the world and is often____ (fill)with tourists.
Neil Armstrong got his student  ____ (pilot) licence at the age of 16.
 Last year our school held the 12th School Art and Culture Festival and it was a big____ （success)
Thomas Edison was one of the greatest____ (invent) in the world.
He made up his mind to explore places that were____ (know) to humans today.

下列各句中划线成语的使用，全都正确的一项是（    ）

①本届冬季奥运会即将举行，相关筹备工作正在紧张进行中，如何使运动员在赛场上创造佳绩，许多有识之士提出了美芹之献，使运动员能够轻装上阵。

②在常人眼里，一张普普通通的寻子启事，似乎并不会引出多少“题外话”。但是日前，细心的宝鸡渭滨分局民警却刨根问底，从一张小小的寻子启事入手，成功地将一个贩毒集团连根拨起。

③经过4年艰苦谈判，哥伦比亚政府与该国最大反政府武装惺惺相惜，24日在古巴首都哈瓦那宣布达成最终全面和平协议，结束长达半个多世纪的武装冲突。

④姚明多年来始终致力于公益慈善事业，在他的感召下，很多人也如过江之鲫，投身保护野生动物的公益活动中去。

⑤记者发现，2016年企业招高端人才的胃口大过往年，不少民企开出二三十万元年薪吸引博士，还提供百万元以上科研经费，可惜上门应聘者寥寥无几。

⑥通常一本书的前言是要提纲挈领的，然而面对顾城，我却不愿这样下笔，并非不可为之，而是自觉资历浅薄，更重要的是顾城于我而言其实就是一部成长史。