特快专递邮件最大尺寸限度规定的目的是：（）。A、限制重量超重 B、便于对特快专递邮件

阅读理解。

        What will things be like in the year 2080? No one knows. But it is

fun to have a guess at it.

        Let's make this a story about you in the year 2080. Our story will be

about one day only. 

      You wake up at seven in the morning. You get dressed. Guess what the

clothes are made of? Paper? Glass? Or something we don't even know

about today.

      The breakfast is no work to fix. Why? The food may be ready for

eating. Now you start for work. But you don't go by car. You step onto

a moving sidewalk. It moves you along to a train station. There you take

a train. How will it run? On one rail high over the street? Or will it ride

in air?  Three o'clock comes. Your work is done for the day. " I'll call

John , a friend of mine , "  you say.

        John answers the picture phone. You and he can hear and see each

other.

       "What shall we do this Saturday?"  you ask. " Shall we put on

our rocket belts and take a short trip? Or shall we go for a ride in a flying

boat?"

       John may say , "I want to ride in a rocket ship !  Let's fly to the

moon ! "

1.         what things will be like in the year 2080.  

A. Some people know    

B. Nobody knows    

C. Scientists have found out    

D. Only a few clever people know 

2. In the year 2080 the clothes we wear will be         those we are wearing now.  

A. the same as          

B. heavier than    

C. stronger than        

D. different from  

3. You may not need to spend any time         in the year 2080.      

A. eating                  

B. sleeping      

C. cooking                

D. traveling  

4. You will take         to go to work.      

A. a special train        

B. a bus      

C. a car                

D. a plane  

5. Probably you can travel to the moon        in the year 2080.      

A. in a train              

B. easily      

C. with much difficulty    

D. in a car

快速响应喷头：平均响应时间系数（RTI）介于50（m•s）0.5和80（m•s）0.5之间且传导系数（C）小于或等于1.0（m/s）0.5的喷头。

浮选过程的组成。

港口布局规划应当符合港口总体规划。

男，48岁。慢性肾炎5年。水肿反复发作，面目浮肿，腰以下肿甚，按之凹陷不起，腰酸，四肢厥冷，神疲乏力，面色晄白，舌质淡，苔白，脉细无力。若症见面部浮肿为主，表情淡漠，动作迟缓，形寒肢冷，可选用（）

A.右归丸

B.左归丸

C.大补元煎

D.五苓散

E.济生肾气丸