可变更或可撤销的合同在被撤销以前是有效的，是否撤销由（）决定。 A.当事人 B.法律

阅读理解。

    My problems started after I went to a boarding school (寄宿学校). I was only 14, and at first I missed

my family a lot. I often called them and cried on the phone. But after two weeks, I found I enjoyed being

with my classmates at school.

    I had many friends who were boys. I thought of them as my best friends - but only friends. I never

guessed my friendships with boys would become a problem. 

    Then, three months later, my friends told me that some teachers and girls said I was hanging out with

boys all day long in order to get attention from them. Seven months after that, the head teacher Mr. Wang

asked the class to choose some students to join the Student Union. I thought I could win for I was doing

well in school. I'd already won prizes for the best math and English exams. A week later, the list came out

and it didn't include me. I was sad.

    Mr. Wang came to me and said, "Don't be sad. I know you're excellent! Maybe you're a little distant

from the girls in our class. They don't know much about you, so some of them didn't choose you. It doesn't

matter. Do your best to get along well with everyone and I think you'll make it next time."

1. What was the writer's problem when she first entered the boarding school?[ ]

A) She didn't like her new school.

B) She didn't get along well with her classmates.

C) She missed her family very much.

2. Many of the writer's friends in her new school were ______. [ ]

A) teachers

B) boys

C) girls

3. Why did the writer fail to join the Student Union? [ ]

A) Her teachers didn't like her.

B) She was a poor student.

C) Some girls didn't choose her.

4. The underlined word "distant" means "______" in Chinese? [ ]

A) 疏远的

B) 挑衅的

C) 偏心的

5. Which of the following is NOT true, according to the passage? [ ]

A) The writer won prizes for the best science and English exams.

B) The writer didn't realize that her friendships with boys would cause problems.

C) The writer was sad because she failed to join the Student Union.

根据课文内容填空。

1．牛顿是著名的____________，他____________观察，____________研究，终于发现了苹果落地是因为____________。

2．动物电视台要招聘主持人，____________、____________、____________和____________都来应聘，只有____________被录取了。

3．要成为一只真正的狮子，就________________________。

4．妈妈告诉小马：光听别人说，自己____________，是不能________________________。

居住区规划设计最基本的要求是( )。

A．卫生要求
B．安全要求
C．经济要求
D．使用要求

一般资料：男，27岁，智力正常。某大学应届毕业生，被某国内知名企业内定。求助者近半年来经常为一些事情无端的担心焦虑，于是来做心理咨询。
以下为求助者与心理咨询师的一段谈话：
心理咨询师：说吧，你有什么事情要我帮忙。
求助者：我是国内知名企业的内定人员，其他的同学都很羡慕我，家人也为我高兴，认为现在应该很轻松了。可是不知道为什么我现在很紧张，更不要说轻松了。
心理咨询师：本来是一件很高兴的事情，你为什么会紧张呢
求助者：是啊，我总有一些莫名其妙的想法，总是不安，担心会发生什么事情，担心家人的身体是不是健康，会不会有什么灾难，担心自己的将来，而且看到一些画面和文字的时候也会特别的担心。
心理咨询师：让你担心的文字和图片都是什么样的呢
求助者：嗯……比如说“车祸”、“疾病”什么的。
心理咨询师：你能再具体一点说说是怎么回事吗
求助者：这种担心已经有很多年了，每次我都极力地避开这些文字、图片。我从来就不敢和我的父母谈及这些事情，害怕他们会不理解我的想法，来批评我。有一次我和我的一个朋友讲了这样的想法，好友说：“这些没什么好害怕的，自己勇敢一点。”可我还是会害怕。
心理咨询师：那么你现在已经尽量避开这些东西了，还是会害怕。原来很喜欢看书的你，现在也没有任何的心情看书了。
求助者：是的，我现在一想到就会很难受，全身都不舒服，胃部很不舒服。还有，我现在每天都会失眠，一躺到床上就会胡思乱想，有时候会想：人为什么要活着我又是为什么而活着的而且别人在说话的时候，我还会怀疑别人是不是在议论我。
心理咨询师：你已经感到难受了，而且会失眠，但还是会想这些事
求助者：我现在心情很不好，而且提不起精神来，感觉活着很无聊，常常会感觉压抑和痛苦，甚至想自杀。我现在很害怕一个人呆着，怕自己会失控。
心理咨询师：出现这样的情况是由于你的心情太压抑、精神紧张造成的，那你能不能告诉我平时你对自己的要求
求助者：我对自己要求严格，不允许自己犯错误。我一直希望自己活得有价值，要充分利用每一分钟。我就是害怕浪费我自己的生命。
心理咨询师：那么你做到了吗
求助者：几乎做到了，我一直很出色，做任何事情都很顺利。不过……(停一会儿)，大三的时候，因为生病我休学一学期，那段时间我过得很不好。
心理咨询师：嗯，过得不好，嗯……讲下去。
求助者：在我生病住院的时候见到一个患有绝症的女孩，通过谈话我知道她的父母不像别人说的那么关心她，我渐渐感觉到她内心的痛苦，就常常去陪伴她，让她开心……，她说我是第一个从心里关心她的人，可是她的病情很严重，最后离开了人世。(哭泣)
心理咨询师：对于她你感到很伤心和无助
求助者：是的，一个美丽的生命就这样枯萎了!后来我就觉得自己很渺小，还常常担心疾病、死亡……
在以后的咨询中，心理咨询师进一步了解相关资料和问题后，为求助者建立焦虑等级量表，把他对于死亡的焦虑分为7级，配合放松训练和家庭作业，获得较好的效果。

求助者自己陈述的主要症状是( )。

A．焦虑

B．烦躁

C．抑郁

D．压抑

若曼彻斯特编码和差分曼彻斯特编码的波形图如图3-2所示，则实际传送的比特串为 (21) 。

A．011010110

B．100101100

C．100100100

D．011010011