口腔念珠菌病的局部治疗药物不包括（） A.2％～4％碳酸氢钠溶液 B.甲紫水溶液 C

两个大小相同的金属小球A、B分别带有q_A︰q_B=4︰1数值的电荷量，相距较远，相互间引力为F．现将另一个不带电的、与A、B完全相同的金属小球C，先与A接触，再与B接触，然后离开，则A、B间的作用力变为                         (    )

A．           B．           C．            D．

In the 13^th century, the famous Italian traveler, Marco Polo, traveled a long way to China. During his stay in China, he saw many wonderful things. One of the things he discovered was that the Chinese used paper money. In western countries, people didn’t use the paper money until 15^th century. However, people in China began to use paper money in the 7^th century.

A Chinese man called Cai Lun invented paper almost 2,000 years ago. He took the wood from trees and made it into paper. He then put these pieces of paper together and made them into a book.

Now paper still comes from trees. We use a lot of paper every day. If we keep on wasting so much paper, there will not be any trees left on the earth. If there are no trees, there will be no paper. Every day, people throw away about 2,800 tons of paper in our city. It takes 17 trees to make one ton of paper. This means that we are cutting nearly 48,000 trees every day. Since it takes more than 10 years for a tree to grow, we must start using less paper now.

So how can we save paper? We can use both sides of every piece of paper, especially when we are making notes. We can use cotton handkerchiefs and not paper ones. When we go shopping, we can use fewer paper bags. If the shop assistant gives us a paper bag, we can save it and reuse it later.

Everyone can help to save paper. If we all think carefully, we can help protect trees. But we should do it now, before it is too late.

小题1: When he was in China, Marco Polo ____________.

A．discovered Cai Lun invented paper

B．learned to make paper

C．saw many wonderful things

D．read a lot of books小题2: Which of the following is not a way of saving paper?

A．To use both sides of every piece of paper

B．To use fewer paper bags when shopping

C．To use cotton handkerchiefs instead of paper ones

D．To grow more trees小题3: Which of the following is not true?

A．If we keep on wasting paper, we will have no paper to use one day.

B．The Chinese used paper money much earlier than people in western countries.

C．About 48,000 trees can be used to make 2,800 tons of paper.

D．It is never too late to plant trees for paper.小题4: Which of the following is the best title for the passage?

A．Saving Paper

B．The History of Paper

C．Cotton Handkerchiefs Back Again

D．Cai Lun, the Inventor

受审核方在末次会议前已对审核组发现的不合格项采取了有效的纠正措施，则这份不合格报告（）

A可以撤消

B不能撤消

C是否可以撤消由审核委托方决定

D是否可以撤消由认证机构决定

阅读《长恨歌》中的一节，回答问题：

君臣相顾尽沾衣，东望都门信马归。归来池苑皆依旧，太液芙蓉未央柳。芙蓉如面柳如眉，对此如何不泪垂。春风桃李花开日，秋雨梧桐叶落时。西宫南内多秋草，落叶满阶红不扫。梨园弟子白发新，椒房阿监青娥老。夕殿萤飞思悄然，孤灯挑尽未成眠。迟迟钟鼓初长夜，耿耿星河欲曙天。鸳鸯瓦冷霜华重，翡翠衾寒谁与共。悠悠生死别经年，魂魄不曾来入梦。

说明这一节在全诗结构中的作用？

除另有说明以外，每艘救生艇的正常属具应包括（）具有发光剂或适当照明装置的操舵罗经.

A.1只

B.2只

C.3只