为防止雨水从馈线洞进入机房，馈线进入机房前应做（）。

When my son, Mark, was in the third grade, he saved all his pocket money for over three months to buy Christmas presents. The third Saturday in December Mark said he had made his list and had twenty dollars in his pocket.

I drove him to a nearby supermarket. Mark picked up a basket and went in while I waited and watched in the car. It took Mark over 45 minutes to choose his presents. Finally he came to the checkout counter and reached into his pocket for his money. It was not there! There was a hole in his pocket, but no money. Mark stood there holding his basket, tears falling down his face.

Then a surprising thing happened. A woman came up to Mark and took him in her arms. "You would help me a lot if you let me pay for you," said the woman. "It would be the most wonderful gift you could give me. I only ask that one day you will pass it on. When you grow up, I would like you to find someone you can help. When you help others, 1 know you will feel as good about it as I do now."

Mark took the money, dried his tears and ran back to the checkout counter as fast as he could. That year we all enjoyed our gifts almost as much as Mark enjoyed giving them to us.

I would like to say “thank you” to that very kind woman, and tell her that four years later, Mark went house to house collecting blankets and clothes for the homeless people in the fire. And I want to promise her that Mark will never forget to keep passing it on.

小题1:When did the story probably happen?

A．On Christmas Day.

B．Before Christmas Day,

C．On New Year's Day.

D．After New Year's Day.小题2:When they got to the supermarket, Mark went in_________.

A．with the writer

B．by himself

C．with the woman

D．with his friends小题3:What happened to Mark in the supermarket?

A．His gifts were stolen.

B．He broke his basket.

C．He lost his money.

D．He lost his way.小题4:Why did the writer want to say “thank you” to the woman?

A．Because she bought Mark a nice present.

B．Because she always paid money for others.

C．Because she collected clothes for the homeless.

D．Because she taught Mark to help people in need.小题5:What's the best title for this passage?

A．A big supermarket

B．A kind woman

C．A happy family

D．A wonderful gift

华支睾吸虫的第一和第二中间宿主是（）

A．拟钉螺/石蟹

B．钉螺/淡水鱼

C．豆螺/蜊蛄

D．椎实螺/淡水虾

E．沼螺/淡水鱼

血清AFP阳性不会出现的一种情况是：（）

A.急性黄疸性肝炎

B.原发性肝癌

C.原发性胆汁性肝硬化

D.睾丸癌

E.妊娠

蛤粉炒时，每100kg药物用蛤粉的量是（）

A.20～25kg

B.30～50kg

C.55～65kg

D.80kg

E.以能掩盖药物为度

扁平足的学生平时应进行（）的医疗体育，以利于康复。

A、抗阻运动

B、助力运动

C、矫正运动

D、协调运动