阳离子表面活性剂是（）。 A．月桂醇硫酸钠 B．脂肪酸甘油酯 C．洁尔灭（苯扎氯铵）

The first teacher-parent meeting would be held in the school. To the little boy’s disappointment(失望), his mother said she would go. He felt sorry for her face. She was very beautiful, but there was a big scar (疤痕) on her right face. The boy never talked about it with his mother.

At the meeting, the people noticed the mother’s kindness and beauty though she had the scar. But the little boy hid himself. After the meeting, the teacher asked his mother carefully. "How did you get the scat on your face?" The mother answered. "When my son was a baby, he was once in a room that caught fire. Everyone was too afraid to go in because the fire was out of control. At that time, I rushed in As I was running towards his bed. I saw a piece of wood coming towards his bed. I threw myself over him to protect him. I was knocked down. Luckily, a fireman came in and saved both of us. But I got the scar." She touched her face." This scar will be here for ever, but I have never felt sorry for what I did."

At that moment, the little boy came out with his eyes wet. He held his mother’s hand for the rest of the day.

小题1:The boy_____ when his mother decided to go to his first teacher-parent meeting.

A．was happy

B．felt disappointed

C．was angry

D．cried loudly小题2:The boy was sorry for his mother because______.

A．his mother was not beautiful

B．he didn’t love his mother

C．there was a big scar on her face

D．the teacher didn’t want to see her小题3:Which of the following is TRUE?

A．The boy knew why his mother got the scar before.

B．The boy told his classmates why his mother got the scar.

C．The mother told the boy about the scar many times.

D．The mother told the teacher about the scat after the meeting.小题4:.The mother got the scar when she_____.

A．slept in a room on fire

B．put out the fire

C．rushed out of the room

D．protected her son小题5:The boy was____ when he knew the truth at last.

A．moved

B．sad

C．bored

D．afraid

下列药物中哪一个是前体药物（）

A．环磷酰胺

B．阿霉素

C．氟尿嘧啶

D．白消安

E．巯嘌吟

女性，21岁，支气管哮喘发作2小时。查体：神志清，明显呼吸困难伴双肺广泛哮鸣音，血白细胞8.0×10/L，中性粒细胞0.82。最常见的动脉血气改变是（）

A.代谢性酸中毒

B.呼吸性酸中毒

C.代谢性碱中毒

D.Paoz降低，PaC0₂正常或降低

E.Pa0₂明显降低，PaC0₂明显升高

[听力原文] 男：对不起，请出示您的驾照。 女：好的。 男：这是您本人的照片吗？ 女：是的，我以前照的。 问：男的可能是什么人？（）

A．照相的人 

B．警察 

C．开车的人 

D．老师

系统论作为一门科学，是于（）创立的。

A、19世纪20年代

B、20世纪30年代

C、20世纪50年代

D、20世纪70年代