下列图示人体内某些生命活动的过程。请据图回答：假如①为淀粉，则所形成的②由肠腔进入A

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     We walked in so quietly that the nurse at the desk didn't even lift her eyes from the book. Mum

pointed at a big chair by the door and I knew she wanted me to sit down. While I watched mouth

open in surprise,  Mum took off her hat and coat and gave them to me to hold. She walked quietly to

the small room by the lift and took out a wet mop. She pushed the mop past the desk and as the nurse

looked up, Mum nodded and said, "Very dirty floors. "

      "Yes, I'm glad they've finally decided to clean them, "the nurse answered. She looked at Mum

strangely and said, "But aren't you working late?"

    Mum just pushed harder, each swipe(拖一下)of the mop taking her farther and farther down the hall.

I watched until she was out of sight and the nurse had turned back to writing in the big book.

    After a long time Mum came back. Her eyes were shining. She quickly put the mop back and took my

hand. As we turned to go out of the door, Mum bowed politely to the nurse and said, "Thank you."

    Outside, Mum told me, "Dagmar is fine. No fever. "

    "You saw her, Mum?"

     "Of course. I told her about the hospital rules, and she will not expect us until tomorrow. Dad will stop worrying as well. It's a fine hospital. But such floors! A mop is no good. You need a brush."

1. When she took a mop from the small room what Mum really wanted to do was____.

A. to clean the floor  

B. to please the nurse

C. to see a patient  

D. to surprise the story-teller

2. When the nurse talked to Mum she thought Mum was a________

A. nurse  

B. visitor

C. patient  

D. cleaner

3. After reading the story what can we infer about the hospital?

A. It is a children's hospital. 

B. It has strict rules about visiting hours. 

C. The conditions there aren't very good.

D. The nurses and doctors there don't work hard.

4. From the text we know that Dagmar is most likely____________

A. the story-teller's sister   

B. Mum's friend

C. the story-teller's classmate

D. Dad's boss

5. Which of the following words best describes Mum?

A. strange

B. warm-hearted

C. clever  

D. hard-working

读下面一则小故事。     

       南北朝时期，有个聪明的孩子叫孔融。众人对他的年少多智赞不绝口，唯有大夫陈炜不以为然地说：“小时候聪明，长大了未必能怎么样。”孔融听到后，很有礼貌地反问道：“那么您小时候一定是聪明的啦？”   

       孔融的意思是                                                                                                                   。

锰是我国低合金钢的主加合金元素，锰含量一般在1%～2%，它的作用主要是使钢材( )提高。

A．塑性

B．韧性

C．强度

D．硬度

轮对由哪些部件组成？相互间如何组装？

下述骨、关节的基本病变，错误的是（）

A.炎症

B.损伤

C.肿瘤

D.关节脱位

E.永存骨骺