问题 单项选择题

和专门的科研机构不同,高等院校,即使是研究型的高等院校,其首要任务是培养学生。这一任务完成得不好,校园再漂亮,硬件设备再先进,教师的科研成果再多,也是没有意义的。
上述议论的结构和以下哪项最不类似( )

A.一个饭店,最重要的是要使顾客感到饭菜好吃。价格的合理、服务的周到,环境的优雅,只有在顾客吃得满意的情况下才有意义

B.一个品牌最重要的是产品质量。如果广告和形式的包装对于某个品牌的产品长期占领市场确实起到了实质性的作用,那么该产品一定具有过硬的质量

C.和学术著作不同,对于文艺作品来说,最重要的是它的可读性、观赏性。只要有足够多的读者,高质量的文艺作品就一定能实现它的社会效益、经济效益,同时体现它的学术价值

D.一个国家要发展,最重要的是保持稳定。一旦失去稳定,经济的发展、政治的改革就失去了可行性

答案

参考答案:C

解析:题干和其他选项都说明了一个核心的必要条件,其中D采取的是充分条件的表示方法,把“过硬的质量”作为“广告和包装形式”的必要条件。只有C描述的是充分条件。

阅读理解

In the near future, people in some parts of the world will watch a new kind of television. It is called the high definition television or the HD-TV. The main difference between an HD-TV and a normal television is the picture. It is more clear and detailed. This is because the HD-TV has many more points and lines that make a television image. Every color television picture contains thousands of red, green and blue points. They all come together as an image in the eye of the person watching. The points are organized in lines that go across the television screen. There are more than five hundred lines in a normal television. The HD-TV has two times as many. To get this clear picture, you must have a big screen. Experts say people using a small screen will see little difference.

The HD-TV also has clear sound. It is like the sound on a CD. All these improvements make an HD-TV very costly. One kind in Japan now sells for more than twenty thousand dollars .A major problem with the HD-TV is its broadcast signal(传播信号.The signal is bigger than normal because it carries more electronic information.

小题1: What is the main difference between an HD-TV and a normal television?  It is        .

A.the picture

B.the shape

C.the voice

D.the weight小题2: What is a color TV image?

A.It is made up of thousands of red, green, and blue points.

B.Points are organized in lines that go across the TV screen.

C.It is a black and white picture

D.Both A and B小题3: How many lines does an HD-TV have?

A.Over 250

B.More than 500

C.More than 1,000

D.About 250小题4: What should you do if you want to get a clear and detailed picture from an HD-TV?

A. You must have the bigger signal for the HD-TV. 

B. You have to get a big screen.

C. You should have a compact disc player.     

D. Both A and B.

多项选择题