问题 问答题 简答题

简述固定期间法的特点。

答案

参考答案:

(1)每次订单涵盖的期间是固定的(每个月的第一周下订单),但是订购数量每次都变动。

(2)基于订购成本较高的考虑。

(3)期间长短的选择,是凭过去的经验或主观来判断。

(4)采用此法每期会有些剩余存货。

阅读理解

阅读下面一篇短文,判断下列句子是否符合短文内容,符合的用"A",不符合的用"B"。

       Today more and more people are using refrigerators. Some are big, others are small. Big ones have

  two or three doors. Such refrigerators can not only keep the food cold and fresh, but also make ice and

  freeze the food.  However, small ones usually have one door and can only keep things cold and fresh.

       There are also refrigerators that are friendly to the environment. In the 1970s, the world was in energy

   crisis (危机). Refrigerators use too much energy. So people began to think of ways to improve it. At last

  a kind of new refrigerators was made. They use very little energy, but they're too expensive. They cost

  twice or three times more than the ones that we use at home. However, people believe they will be

  cheaper and cheaper. As a result, they will be more and more popular.

       In the future, there will be refrigerators that can do more than we can imagine. They are called smart

  refrigerators (智能冰箱). They have tiny computers inside, with their screens on the door. They can

  show us what food is inside. They can also tell us what food to buy. They can even let. us know what

  food to eat when we input the necessary health information. That more surprising thing is that they can do

  shopping for us when they are connected (连接) to the supermarket.

( )  l. Small refrigerators can not only keep the food cold but also freeze the food.

( ) 2. Refrigerators that use little energy are more expensive.

( ) 3. Environment friendly refrigerators. will be popular some day.

( ) 4. Refrigerators that keep the food fresh are smart refrigerators.

( ) 5 .We can have a "talk" with smart refrigerators.

选择题