阅读理解。 Laptops are popular all over the

题型:阅读理解

问题:

阅读理解。

     Laptops are popular all over the world. People use them on trains and airplanes, in airports and hotels. These

laptops connect people to their workplaces. In the United States today, laptops also connect students to their

classrooms.

     West Lake College in Virginia will start a laptop program that allows students to do schoolwork anywhere

they want. Within five years, each of the 1500 students at the college will receive a laptop. The laptops are part

of the 510 million computer programs at West Lake, a 110-year-old college. The students with laptops will also

have access (通路) to the Internet. In addition (另外), they will be able to use e-mails to "speak" with their

teachers, their classmates and their families. However, the most important part of the laptop program is that

students will be able to use computers without going to computer labs. They can work with it at home, in a

fast-food restaurant or under the trees. Anywhere is OK!

     Because of many changes in computer technology, laptops are widely used in higher education, such as

colleges and universities. As laptops become more powerful, they become more similar to desktop computers.

In addition, the portable (便携式的) computers can connect students to not only the Internet, but also libraries

and other resources (资源). State higher-education officials are studying how to help students. State officials are

also testing laptop programs at other universities.

     At West Lake College, more than 60 percent of the staff (员工) use computers. The laptops will allow all

teachers to use computers in their lessons. As one West Lake teacher said, here we are in the middle of Virginia

and we're giving students a window of the world. They can see everything and do everything.

根据短文内容,判断正(T)误(F)。

( ) 1. The main purpose of the laptop program is to give each student a laptop to work at home.

( ) 2. West Lake College is an old college in the U.K.

(     ) 3. The laptop program is helpful to the students.

(     ) 4. A window of the world in the last paragraph means that the students can get information from all over

            the world.

(     ) 5. We don't know the result about the laptop program yet.

考点:科教类阅读
题型:阅读理解

毒理学试验中溶剂选择原则错误的是()

A.与受试物不发生反应

B.本身无毒

C.不被机体吸收

D.受试物溶解后稳定

E.不改变受试物的理化性质及生物学活性

题型:阅读理解

如图所示,两个完全相同的光滑球的质量均为m,放在竖直挡板和倾角为α的固定斜面间.若缓慢转动挡板至与斜面垂直,在此过程中(  )

A.A、B两球间的弹力逐渐增大

B.B球对挡板的压力逐渐减小

C.B球对斜面的压力逐渐增大

D.A球对斜面的压力逐渐增大

题型:阅读理解

如图所示是小明欲将一袋粮食从地面抬到楼顶上。在不计绳重和摩擦的情况下,小明用动滑轮把重40N的一袋粮食匀速提高10m,他所用的拉力为25N,则整个过程中小明所做有用功是________J,总功是________J,动滑轮的机械效率是________;如果把重100N一袋粮食的匀速提升相同高度,则这个动滑轮的机械效率将________(选填“变大”、“变小”或“不变”)。

题型:阅读理解

房间隔缺损最常见类型是()

A.原发孔型

B.下腔型

C.静脉窦型

D.卵圆孔型

E.混合型

题型:阅读理解

某外国专家在中国境内的一家外商投资企业工作,依照中国税法被认定为非居民纳税人。2003年5月该专家取得工资、薪金收入22000元,该专家本月应纳个人所得税额()元。

A.3025 

B.3225 

C.3925 

D.4175

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