耦合电路的基本要求是什么？

2010年12月22日，沉没在苍茫海水中800多年的中国古沉船“南海一号”的“惊艳一浮”，让无数国人为之自豪，它既为海上丝绸之路提供了实证，又推动了中国水下考古学科的建设．据保守估计，其上载有6万至8万件文物，在已发掘出的文物中发现了大量瓷器、宋代铜钱、铁锅、梳篦等物品．

（1）中国的陶瓷举世闻名，陶瓷材料属于______材料；

（2）中国的铁锅源远流长，受到联合国卫生组织的推崇，原因之一是由于铁锅能为人体补充铁元素．若人体缺乏铁元素，容易引起______症；

（3）被发掘出的宋代铜钱已经锈迹斑斑，这是因为铜能与空气中的氧气、水以及二氧化碳发生化合反应生成铜绿[Cu₂（OH）₂CO₃]，请写出该反应的化学方程式：______．

根据铜绿的组成判断，若要除去铜钱表面的铜绿，可选用的试剂为______（填化学式）．

单元测试通常应该先进行人工走查，再以白盒法为主，辅以黑盒法进行动态测试。（）

《中华人民共和国消防法》规定，人员密集场所发生火灾，该场所的现场工作人员不履行组织、引导在场人员疏散的义务，情节严重，尚不构成犯罪的，处（）拘留。

A．五日以上 

B．五日以上十日以下 

C．五日以上十五以下 

D．十日以上十五以下

阅读表达。

     International volunteering does not only mean helping people who are in need. There are also some

animals that need voluntary help. Compared to humans, animals are luckier because they do not know how to express their emotions (情感). They do not know how to express what they want and they do not

know how to express what makes them hurt. Some people may think that volunteering to help animals is

hard; it may be true but _____.

     If you volunteer to help animals in China, you can help support the endangered (濒危的) species of

pandas. The country of Costa Rica offers a sea turtle conservation area (保护区). You can work on the pacific coasts or in the Caribbean and save one of the most unusual creatures in the world, the sea turtles. But if you want thrills and adventures, you can volunteer to help feed those rare white lions in the Lion Park in Johannesburg, a city of South Africa and have fun with other wild animals. You can also go to

Guayaquil, Ecuador where international volunteer programs have been offered include helping animals like crocodiles. Volunteering in Malaysia is a great experience too. Taking good care of the orangutans

(猩猩), feeding them right and saving them from any illness are just some of the things you can do. Aside

from the countries being mentioned above, you can also volunteer in some other countries that have the

same volunteer program being offered.

1. List three countries that can offer animals volunteer jobs and the endangered animals there: (Please

answer within 15 words.) 

2. Translate the underlined sentence in this text into Chinese. 

3. Fill in the blank with proper words or phrases. (Please answer within 8 words.) 

4. Which sentence in the text can be replaced by the following one?

Besides these countries, all the countries joining the volunteer program can offer animal volunteer

jobs.

5. Do you agree that animals are luckier than human beings? And why? (Please answer within 30 words.)

原发性甲状腺功能减退症最早出现异常的是

A．FT³
B．FT⁴
C．TT³
D．TT⁴
E．TSH