(三)甲房地产开发公司(以下简称甲公司)委托乙房地产经纪公司(以下简称乙公司)独家销

单词拼写。

1. It was in 1912 that the ship Titanic s_______ in the Atlantic Ocean.

2. In my o______, his suggestions are not practical.

3. Mandela took an a______ part in the struggle for independence.

4. Chinese athletes won 51 gold m_____ in the 29th Olympic Games.

5. People thought h_____ of him for his good deed.

6. Half of the students in the school were a_____ to university last year.

7. I bought it at the sales; it was really a b______.

8. Many bombs(炸弹) e______ in the capital city on a single day.

9. Of the two colours, I prefer the f______ to the latter.

10. A r____ will be paid to whoever brings back the wallet he lost.

天然气中含有的非烃类组分有什么？

19世纪中后期，第二次工业革命出现，其主要成就有

①电的广泛使用   ②内燃机的创制和使用 ③化学工业的发展  ④电讯事业的广泛发展

A．①②③

B．①②③④

C．②③④

D．①②④

世界卫生组织倡导使用铁制炊具，这样做的原因是

A．铁是维生素的成分

B．铁有利于蛋白质的吸收

C．铁可以防治贫血

D．铁是骨骼的主要组成成分

实施从量税当国际市场价格水平上涨时其保护程度（）。

A、降低

B、提高

C、不变

D、不确定