薄公英靠什么传播种子（）A、风力 B、水力 C、电力 D、地心吸引力

It was 12:45 pm on January 2, 2007. 50-year-old Wesley Autrey was waiting for the train at a subway station in New York. His two daughters, aged four and six, were with him.

Suddenly, a sick man fell down on the platform (站台). The man, 20-year-old Cameron Hollopeter, got up, but then fell again—this time, onto the track between the two rails (道轨). A train was coming into the station. It was a frightening moment.

But Mr Autrey wasn’t frightened. He looked at the man and the space that the man was in. It was about half a meter deep. And he thought, “The train is going to travel over this man. If he tries to get up, the train will kill him. But if he lies on the ground and doesn’t move, he’ll be OK.” So he got an idea.

He jumped down and kept Mr Hollopeter down on the ground. The train driver saw them. He was terrified, but he couldn’t stop in time. The train traveled over the two men before it stopped.

The people on the platform were surprised. When Mr Autrey heard them screaming, he shouted, “We’re OK down here, but I’ve got two daughters up there. Let them know their father is OK.”

In an interview on a TV show, Mr Autrey said, “The only thing that happened to me was my blue hat got dirty.”

小题1:Why did Mr Hollopeter fall on the platform and then the track?

A．Because he was ill.

B．Because he walked so fast.

C．Because he was too old.

D．Because the subway station was so crowed.小题2:Which of the following is TRUE?

A．Mr Autrey was so frightened when he saw what had happened.

B．Mr Autrey thought the space that the man was in was about one meter deep.

C．The train driver saw the two men but he couldn’t stop the train in time.

D．Mr Autrey and Mr Hollopeter were both taken to a hospital.小题3:Mr Autrey was worried about         when the train stopped.

A．his two daughters

B．Mr Hollopeter

C．his blue hat

D．the train driver小题4:Mr Autrey lay on top of Mr Hollopeter in order to        .

A．keep him calm

B．keep him down

C．keep him warm

D．keep him awake小题5:What’s the best title for the passage?

A．A Sick Man

B．Save One’s Life

C．Mr Autrey and Mr Hollopeter

D．The Subway Hero

下列变化属于化学变化的是（　　）

A．轮胎爆炸

B．玻璃破碎

C．冰棒融化

D．菜刀生锈

决定法洛四联症病情轻重的病变是（）

A.左心室肥大

B.动脉导管未闭

C.肺动脉瓣狭窄

D.肺动脉狭窄

E.右心室肥大

骨与关节结核的常见并发症除外（）

A.窦道形成

B.关节病理性脱位或半脱位

C.关节融合

D.关节畸形或强直

E.肢体短缩

( )不是问卷设计的基本原则。

A．目的性原则
B．全面性原则
C．非暗示性原则
D．系统性原则