机动车维修经营业务根据维修对象分为汽车维修经营业务、（）维修经营业务、摩托车维修经营

Teacher’s Day around the world is not celebrated on the same day. In some countries, Teacher’s Day is celebrated on working days. However, in other countries, it is celebrated on holidays. Here we are giving you a list of countries that celebrate Teacher’s Day on holidays.

China

Teacher’s Day was proposed (提议) at National Central University in 1931. It was adopted (采纳) by the central government of Republic of China in 1932. In 1939, the day was set on August 27, Confucius’s birthday. The government of the People’s Republic of China called it off in 1951. It was reestablished in 1985, and the day was changed to September 10. Now more and more people are trying to celebrate Teacher’s Day back to Confucius’s birthday.

India

In India, Teacher’s Day is celebrated on September 5, in honor of Dr Sarvepalli Radhakrishnan, the second President of India，because his birthday was September 5.

Russia

In Russia, Teacher’s Day is on October 5. Before 1994, this day was set on the first Sunday of September.

The USA

In the United States, Teacher’s Day is a holiday on the Tuesday of the first full week of May.

Thailand

January 16 was adopted as Teacher’s Day in Thailand by a resolution (决议) of the government on November 21, 1956. The first Teacher’s Day was celebrated in 1957.

Iran

In Iran, Teacher’s Day is celebrated on May 2 every year. It is in honor of the famous Iranian professor Ayatollah Morteza Motahhari who died on May 2, 1980.

Although different countries celebrate Teacher’s Day on different days, the activities people take to celebrate it just stay the same.

小题1:The best title for the passage is ____.

A．Teacher’s Day around the world

B．The history of Teacher’s Day

C．Activities on Teacher’s Day

D．How to celebrate Teacher’s Day小题2:In which year was Teacher’s Day changed from August 27 to September 10 in China?

A．1931.

B．1939.

C．1951.

D．1985.小题3:In which country is Teacher’s Day celebrated in honor of its leader?

A．Iran.

B．India.

C．Russia.

D．Thailand.小题4:What will probably be discussed next?

A．How Teacher’s Day became popular in the world.

B．Which country is the first to celebrate Teacher’s Day.

C．What activities people take to celebrate Teacher’s Day.

D．Which country has the longest vacation for Teacher’s Day.

女性，30岁，患原发性甲状腺功能亢进（Graves病），甲状腺肿大Ⅱ～Ⅲ度，血清T₃、T₄均明显增高，脉搏110次／分。

甲状腺大部切除后发生手足抽搐，选用有效的治疗药物是（）

A.静脉注射10%葡萄糖酸钙

B.口服葡萄糖酸钙

C.维生素D₂

D.地西泮（安定）

E.二氢速固醇

某工人在具有苯的车间操作冲压机，由于带病作业、思想不集中、误按冲压机开关，导致事故的发生。请问导致事故的直接原因有（）

A.物理性危险、有害因素

B.从事禁忌作业

C.化学性危险、危害因素

D.行为性危险、有害因素

E.心理性危险、有害因素

若一个热力系统和外界之间既无热量和机械等能量交换也无物质交换，这种系统称为（）

A.开口系统

B.闭口系统

C.绝热系统

D.孤立系统

计算题：一根杆件长L=10m、受拉后长度增加为L=10.001m，它的应变值ε是多少？