下列实验操作正确的是（ ） A．用胶头滴管滴加液体时，滴管下端应紧贴试管内壁以防

用同一方法反复测定某一样品所获得的值间的一致性，可用下列哪一名称来表示这一结果（）

A.差异度

B.饱和度

C.精密度

D.准确度

E.特异性

依据我国《专利法》的规定，外观设计专利的保护范围应当根据( )确定。

A．说明书

B．权利要求书

C．实物模型或样品

D．请求书

管理层讨论与分析信息大多涉及“内部性”较强的定性型软信息，无法对其进行详细的强制规定和有效监控。( )

阅读理解

     根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为

多余选项。

     For several years, Americans have enjoyed teleshoppingwatching TV and buying things by phone.

  1   In a number of European countries, people can turn on their TVs and shop for clothes，jewelry,

food, toys, and many other things.

      2      For example, the biggest Swedish company sells different kinds of things on TV in 15 European

countries, and in one year it made $100 million. In France there are two teleshopping channels, and the

French spend about $ 20 million a year to buy things through those channels.

      In Germany, until last year teleshopping was only possible on one channel for 1 hour every day. Then

the government allowed more teleshopping. Other channels can open for telebusiness, including the

largest American teleshopping company and a 24hour teleshopping company.   3  

     Some people like teleshopping because it allows them to do their shopping without leaving their

homes. With all the problems of traffic in the cities, this is an important reason, but at the same time,

other Europeans do not like this new way of shopping.    4    Many Europeans usually worry about the

quality of the things for sale on TV. Good quality is important to them，and they believe they cannot be

sure about the quality of the things on TV.

        5   They will have to be more careful about the quality of the things they sell. They will also have to

w ork harder to sell things that the buyers cannot touch or see in person.

A. Now teleshopping is starting in European.

B. They call teleshopping “Junk on the air”.

C. Teleshopping is becoming popular in Sweden.

D. German businesses are hoping this new teleshopping    will help them sell more things.

E. The need for high quality means that European teleshopping companies will have to be different

    from the  American companies.

F. Teleshopping is popular among people.

G. German teleshopping business is controlled by American.

下列叙述中，正确的是( )。

A．Reader是一个读取字符文件的接口

B．Reader是一个读取数据文件的抽象类

C．Reader是一个读取字符文件的抽象类

D．Reader是一个读取字节文件的一般类