下列单质或化合物性质的描述正确的是 A．NaHSO4水溶液显中性 B．SiO2与

阅读理解。

     Planting is the most important part of beautifying the surroundings (美化环境), remaking nature

(改造自然) and developing the national economy (经济). It can make the country rich and the people

happy. Planting can stop the wind from blowing the earth and sand away. It conserves (贮存) water and

keeps water and soil. It can care the people's life and property. It is good for everything around us.

     Today the forests' area of our country is very little. Among one hundred and sixty countries all over

the world, it reaches the one hundred and twentieth place. Our forests' area is less than that of other

countries.

     In the recent years, because we don't do the work about planting well, we have met with lots of

natural calamities (灾害), like drought, floods, wind, sandstorms and so on. They bring much harm to

the people's health, life and property. From now on, we must plant trees and cover the mountains with

trees. Everyone should love trees, care trees and look after trees. We must plant trees everywhere and

make our country green. We must bring benefit (造福) to human beings.

1. We plant trees because

A. planting is very interesting

B. planting can only beautify our schoolyard

C. planting is good for the people's life, health and property

D. we can get lots if wood

2. Which of the following isn't true ?

A. Planting can keep the earth and sand away .

B. Planting can stop the wind from blowing the earth and sand away .

C. Our forests' area is at the back of one hundred and sixty countries .

D. Planting brings good wealth (财富) to mankind .

3. It reaches the one nundred and twentieth place . Here "it" means

A. the coverage rate

B. the forests' area

C. the world's average number

D. the countries all over the world

4. If we don't pay attention to planting ,what will we meet with ?

A. Drought

B. Sand storms

C. Floods

D. All of the above

下列说法有错的一项是 [ ]

A．《墨子》一书，是墨子的弟子及其再传弟子对墨子言行的辑录。墨子，名翟，是春秋战国时期墨家学派的创始人。

B．《孟子》是孟子及其门人所作，是儒家经典之一。与《大学》《中庸》《论语》合称“四书”。

C．《得道多助，失道寡助》选自《孟子?公孙丑下》，这一章着重阐述了孟子关于统治者要施仁政，行王道的思想。

D．《庄子》是道家经典之一，庄子，名庄周，战国时期哲学家，道家学派的创始人。

承运人将货物以包括海上运输在内的两种或两种以上的运输方式，从一地运至另一地，为此而签发的提单称之为（）。

A．水陆联运提单

B．海上联运提单

C．海陆联运提单

D．多式联运提单

夹具上常用的气缸型号为CA163-100，其中“63”表示（）

A、气缸内径

B、气缸最大工作行程

C、气缸内腔长度

D、气缸外径

既能收敛止血，又能消肿生肌的药物是（）

A.三七

B.茜草

C.蒲黄

D.白及

E.白茅根