要使市场细分成为有效和可行的，必须具备的条件有（）。 A.可度量性 B.有价值 C.

阅读理解。

        People from different countries like to eat different kinds of foods.  In Japan,  people like to eat

fish.  Sometimes they don't cook fish.  They eat rice, too. In Korea  (朝鲜), people like to  eat vegetables.

They eat vegetables with rice.In Vietnam (越南),people like to eat beef, vegetables and noodles.  In

India,  people like to eat fish.  They eat fish with rice.  They like to put a lot of red sauce(酱汁)on it. In

Russia  (俄罗斯), people like to eat pancakes. They like to drink tea, too.In Argentina  (阿根廷),  

people like to eat beef.  In Mexico,  people like to eat beans.  In the USA,  people like to eat hamburgers

at home.

1. How many countries are there in the article?[ ]

A. 8.          

B. 9.          

C. 10.          

D. 11.

2. In which countries do people like to eat fish?[ ]

A. Japan andlndia.            

B. Korea and Russia

C. Mexico and the USA.            

D. Japan and Korea

3. Beef is popular in______[ ]

A.  Korea and Mexico    

B.  Russia and Argentina

C.  Vietnam and Argentina        

D.  Japan and Korea

4. If you like eating vegetables with rice, you many go to______.      [ ]

A. Vietnam      

B. Korea        

C. Japan          

D. the USA

5. Which of the following is true?[ ]

A.  People in Japan don't like cooling fish.

B.  People in India and Mexico like to eat hot food.

C.  People in China eat noodles for lunch.

D.  People in the USA like to eat hamburgers at home.

物流作业的选定是根据企业生产工艺流程和物流过程进行深入了解和分解，把企业物流运营的全过程划分为一定数量的作业。

欲有效开展质量管理，必须设计、建立、实施和保持( )。

A．质量管理方针

B．质量管理措施

C．质量管理计划

D．质量管理体系

一个书店的老板想将Book表的书名设为主键，考虑到有重名的书的情况，但相同书名的作者都不相同。考虑到店主的需求，可定义适当的主键为( )。

A．定义自动编号主键

B．将书名和作者组合定义多字段主键

C．不定义主键

D．再增加一个内容无重复的字段定义为单字段主键

金属外壳的电动工具电源线采用（）线。

A、3芯护套

B、4芯护套

C、2芯护套

D、任一种护套