阅读理解。

     In Japan many old people don't live with their children. They have no one to talk to. Their life is very

boring. Now a new robot (机器人) comes. It has two big eyes and ears. It looks like a white teddy bear.

There are four cameras and a sensor (传感器) in the robot. It can draw planes. It can also use the

Internet (网络) to find some pictures and draw them down. It is a good friend for the old. It will help them a lot and it can chat (聊天) with them. It can answer some questions,too. Sometimes it also helps them to

find glasses. It doesn't mind listening to the same stories again and again. Lots of children also like it. They can play with it when their parents go to work.

1. In Japan many old people _____ talk with others.

A. usually  

B. often    

C. seldom  

D. always

2. What do many old people think of their lives in Japan?

A. Busy.  

B. Boring.  

C. Interesting.  

D. Colorful.

3. What color is this new robot?

A. White.  

B. Green.  

C. Black.  

D. Brown.

4. How many cameras does the robot have?    

A. 2.  

B. 3.  

C. 4.  

D. 5.   

5. What things can't the robot do?    

A. Chat with others.   

B. Draw pictures.     

C. Use the Internet.     

D. Do housework.    

RO的脱盐率应（）。

A、≥97％

B、≥98％

C、≥99％