一只袋子里装有15只袜子，每次拿出2只或3只。要想将这些袜子全部取出，共有多少种不同

有关胃肠道手术病人术前准备，正确的是（）

A.术前3天开始进流食

B.术前12小时禁食

C.术前12小时禁水

D.幽门梗阻病人不必洗胃

E.直肠手术病人术前1天口服抗生素

I'm talking to you, Jack. Please listen to ______ carefully. 　　[ ]

A. me

B. mine

C. you

D. yours

阅读理解。

     Parents should stop blaming themselves because there's not a lot they can do about it. I mean the teenager

(十几岁的孩子) problem. Whatever you do or however you choose to deal with it, at certain a wonderful,

reasonable and helpful child will turn into a terrible animal.

     I've seen friends deal with it in all kinds of different ways. One strict mother insisted that her son, right

from a child, should stand up whenever anyone entered the room, open doors and shake hands like a gentleman.

I saw him last week when I called round. Sprawling (懒散地躺) himself on the sofa in full length, he made

no attempt to turn off the loud TV he was watching as I walked in, and his greeting was no more than a quick

glance at me. His mother was ashamed, "I don't know what to do with him these days," she said. "He's

forgotten all the manners we taught him."

     He hasn't forgotten them. He's just decided that he's not going to use them. She confessed (坦白) that she

would like to come up behind him and throw him down from the sofa onto the floor.

     Another good friend of mine let her two daughters climb all over the furniture,reach across the table, stare

at me and say, "I don't like your dress; it's ugly." One of the daughters has recently been driven out of school.

The other has left home.

     "Where did we go wrong?" her parents are now very sad. Probably nowhere much. At least, no more than

the rest of that unfortunate race, parents.

1. This text is most probably written by _____.

A. a specialist in teenager studies

B. a headmaster of a middle school

C. a parent with teenage children

D. a doctor for mental health problems

2. The underlined word "it" in the second paragraph refers to _____.

A. the change from good to bad that's seen in a child

B. the way that parents often blame themselves

C. the opinion that a child has of his parents

D. the advice that parents want their children to follow

3. The boy on the sofa would most probably be described as _____.

A. lazy

B. quiet

C. unusual

D. rude

4. From the second example we can infer that the parents of the two daughters _____.

A. pay no attention to them

B. are too busy to look after them

C. have come to hate them

D. feel helpless to do much about them

接受捐赠收入，按照什么日期确认收入的实现？

当场处以罚款的，应予以当场收缴。