在秩相关的分析中，下列描述正确的是A．其适用于单变量正态分布的资料 B．总体分布类型

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.

指令SAR可用来______除2，而指令SHR则可用来______除2。

下列哪些是效应评价的内容（）。

A.人群的参与度

B.传播材料的预实验

C.行为影响因素的变化评估

D.传播媒体的评估

E.人群健康需求评估

利用人们遭遇意外打击后大脑的短暂空白，操控事主转帐汇款的骗术属于（）.

A.馅饼类

B.亲情类

C.震撼类

D.信息类

根据IALA浮标制度规则规定，下列（）国家属于A区域？Ⅰ日本Ⅱ韩国Ⅲ菲律宾Ⅳ南北美洲Ⅴ欧洲Ⅵ非洲

A.Ⅰ～Ⅲ

B.Ⅰ～Ⅳ

C.Ⅳ～Ⅵ

D.Ⅴ、Ⅵ