乙炔发生器必须设有水封（），否则，禁止使用。A.安全门 B.安全器 C.保护装置

触按疮疡局部，肿处烙手而压痛者，病属（）

A.实寒证

B.实热证

C.虚寒证

D.虚热证

E.气血虚证

阅读理解。

     My father was a keen baseball fan Whenever he could, Dad took me out to the park and pitched balls for

me to hit.

     One day at the park, a woman pushing a young boy in a wheelchair stopped to watch us play. My dad was

over to them in a flash to ask if the child could join our game. The woman explained that her son had polio (小

儿麻痹症) and wouldn't be able to get out of the chair. That didn't stop my dad. He placed the bat in the

youngster's hand, pushed him out to home plate and assisted him in holding the bat. Then he yelled out to me,

"Anne, pitch one in to us."

     I saw the delight in the boy's eyes, so I aimed at the bat and let the ball fly. The ball made contact with the

bat with an assist from my dad and the child screamed with joy. As I turned, I heard my dad singing Take Me

Out to the Ball Game.

     An hour later we all left the field, very tired but very happy. Dad told the mother to bring the boy back next

Saturday and we would play another game.

     Dad and I were at the field the next Saturday but the mother and son never came Twenty years passed, with

my dad gone, I had very mixed emotions about leaving the neighborhood. Before moving I decided to take one

last walk around the park where Dad and I had spent so many happy moments. Two Little League teams were

on the field just about to start a game I felt the sting of tears in my eyes as I watched the children play the game.

     "Jeff, protect your base," one coach yelled I cheered the runner on when the ball was hit far into the outfield.

The coach turned and smiled, "I never thought I'd ever be a coach playing on this field You see, I had polio as

a child and was restricted to a wheelchair. Thanks to a man's assistance, I was able to hit the ball and hear him

singing the song Take Me Out to the Ball Game. I believe that experience gave me the desire to walk again I hope

that some day I'll look up in the stands and see that man and his daughter again I sure would like to thank him."

1. The author was tearful when watching the children playing the game because _____.

A. she hadn't recovered from the loss of her father

B. she was reminded of her father playing with her in the park

C. she realized that her father hadn't received thanks from others

D. she was moved by the son who became a coach twenty years later

2. Which is the right order of the following events?

a. The author's father died.

b. The author played with the boy.

c. The author left the neighborhood.

d. The author waited for the boy to turn up.

e. The author saw the boy coaching a team.

A. d-b-e-a-c

B. d-b-e-c-a

C. b-d-a-c-e

D. b-d-a-e-c

3. The passage conveys the message that _____.

A. the boy is a miracle

B. the author's father is a hero

C. a simple act of kindness can change a life

D. ball games have a great effect on people's life

跨桥线、天桥的扶梯边缘与接触网带电部分的距离小于（）m时，在扶梯上要装设安全挡板或细孔网栅。

A、5

B、4

C、3

D、2

当有急性肾功能不全不排除尿路梗阻因素存在时，首选检查是

A．泌尿系CT
B．泌尿系MRI
C．泌尿系彩超
D．造影
E．IVP

新建商品房销售中，最主要的宣传资料是项目楼书和( )。

A．宣传展板
B．销控表
C．置业计划
D．户型手册