将PC机组成以太局域网时必须用到网卡、中继器和集线器等设备，其中的一种设备可用来对接

遇到这样的路口，以下哪种做法是正确的？

A、快速闪烁前照灯，提醒前方车辆快速驶离路口
B、紧急制动保证车辆能够在停车线前停止
C、降低车速确认安全后通过
D、以上行为都是正确的

D

Global warming is the process of earth’s atmosphere heating up. Over the last 100 years, the average temperature of earth’s atmosphere has gone up 1 Fahrenheit. The weather has not changed exactly the same way in every area of the planet. But scientists think that the rise in average temperature is already affecting the earth’s climate.

Many scientists now believe that global warming is caused by cutting down trees, producing more trash, and polluting the environment are some of the reasons that the temperature has gone up. Many scientists believe that the biggest causes of global warming are new human technologies that release greenhouse gases into the atmosphere.

The greenhouse effect is not new. Certain gases in the atmosphere, like carbon dioxide, nitrous oxide and methane, prevent heat energy from escaping back into space. In the past, the climate didn’t change much because nature produced just the right amount of greenhouse gases to deal with it.

Today, most scientists are pretty sure that the rising temperature can’t be blamed on nature. Ever since the industrial revolution in the 1700s, humans have relied on machines for daily life. And many of those machines give off a lot of greenhouse gases. An increase in the release of greenhouse gases from human activities is throwing nature off balance.

The climate is a very complicated thing, but many scientists agree that the rising atmospheric temperature has already damaged the environment. Sheets of ice, called glaciers, are melting in Antarctica and other parts of the globe. As glaciers break off and melt into the oceans, they are adding warm water to the oceans and causing the sea level to rise.

Over the past last 100years, the sea level has risen 6-8 inches around the world. That means land along the coasts is beginning to disappear under water. Bigger and warmer oceans are also adding to other weather problems caused by pollution in the atmosphere. Some places have received more rain, others have had bigger storms and a few areas in the world have experienced unusual droughts.

68. What is mainly talked about in this passage?

A. The melting of glaciers.                B. Global warming.

C. The world’s weather.                  D. The earth’s temperature.

69. What causes global warming according to scientists?

A. Human activities.                     B. The nature itself.

C. The earth’s atmosphere.                D. New discoveries

70. How can greenhouse gases make the globe warm?

A. They keep heat in the atmosphere   

B. They let the heat go out into space.

C. They release heat into the air.       

D. They can make the other gases warm.

71. From the passage we can see that global warming will bring about _________.

A. the pollution in the atmosphere            B. natural disasters

C. population pollution                     D. the rise of glaciers

某制药生产企业（—般纳税人），2006年11月份发生下列购销业务：

（1）购进A原料药一批，取得增值税专用发票注明价款1000000元，货已验收入库；另支付运输费50000元，取得主管地方税务局认定的货物运输业发票；

（2）购进B原料药一批，用十免税药品的生产，取得增值税专用发票注明价款100000元，货已验收入库；

（3）进口药品检验设备一台，取得海关的完税凭证上注明增值税税额120000元；

（4）向一纸制品厂定制药品包装箱一批，药厂已预付货款并取得增值税专用发票注明价款80000元，包装箱下月交付；

（5）外购货物一批用于对联营企业投资，取得增值税专用发票注明价款1000000元；

（6）采取分期收款方式，销售900000元的药品给一药品批发企业，已取得首期货款300000元，开具的增值税专用发票注明价款900000元；

（7）销售给外省某药品经销商一批药品，货已发出并办妥托收手续，开具的增值税专用发票注明价款600000元，但发货后即获悉对方短期内无力支付货款；

（8）无偿提供市场价格为80000元的药品给某医院试用；

（9）折扣销售给某特约经销商一批药品，由于该经销商是药厂长期客户，因此给予了5%的折扣，开具的增值税专用发票注明价款2000000元，5%的折扣，经销商当月即付清全部货款；

（10）将已逾期一年的包装物押金50000元，冲销本厂库存包装物成本。

该制药生产企业计算的当月增值税税款：

当月进项税额：1000000×17%+50000×7%+120000+80000×17%+100000×17%=324100（元）

当月销项税额；300000×17%+2000000×（1-5%）×17%=374000（元）

当月应纳增值税额=374000-324100=49900（元）

要求：请依据增值税暂行条例及有关规定，指出该企业当月增值税计算是否正确如有错误请指出错误之处并正确计算当月应纳增值税税额。

被保险人要求保险人实施保险保障的具体对象和具体目标是（）

A.保险合同

B.保险标的

C.保险利益

D.可保利益

打电话属于（）

A.运动方面

B.自理方面

C.交流方面

D.家务劳动方面

E.以上均不是