下列反应不属于置换反应的是(　 　) ①氧化铁与铝粉混合发生铝热反应； ②镁条在

《素问·四气调神大论》记载夏三月的养生方法有（）

A.夜卧早起

B.无厌于日

C.以使志生

D.华英成秀

E.使气得泄

采用手掘式顶管时，工具管进入土层过程中，每顶进()m，测量不少于一次。

A．0.3

B．0.5

C．1

D．1.2

患者，男性，47岁，患高血压病16年，未接受系统治疗。2小时前突感持续性胸痛，呈刀割样，伴大汗淋漓。查体：血压(左上肢)100/60mmHg、(右上肢)200/110mmHg，双肺未闻及啰音，心界无扩大，心尖部3/6级SM，呈吹风样，右侧桡动脉搏动减弱。

该患者首选的处理方法是

A．溶栓治疗
B．冠状动脉造影及支架置入术
C．迅速控制血压
D．高流量吸氧
E．镇痛治疗

阅读理解

     While most high school students spend most of their time worrying about who likes who,and different

relationships between their classmates,I choose to focus on my school lessons and sports.

     When I was young,my mother encouraged me to develop and keep friendship with boys in order to

build strong relationships. But she told me not to risk a good friendship with a boy with the title of

boyfriend. It's indeed a wise choice to stay friends with those of the opposite sex. In my opinion, even

though some high school relationships might continue after graduation,the probability of them lasting much

longer is so slim that there really is not a point to it.

     Firstly you have to think about such a question－whether it is possible to hurt both of you,or even

hurt both of your future husbands or wives. My second point is that you still can date if you hope marriage could possibly follow. Except this,there really is not any other reason for dating. Some students desire

relationships for a chance to be romantic. While these are nice to have,there are many more important

things at this point in our lives.

     The titles of boyfriend and girlfriend put too much stress on a relationship between high school students. Just staying as common friends may be the best choice for us. I strongly recommend we should deal with

it in an appropriate way and follow our teachers' advice if necessary.

1. The author writes this passage probably for ________ to read.

A. high school students  

B. school teachers

C. parents and teachers  

D. married couples

2. Between sexes,the relationship of being good friends might be ________ than that of being

    boy/girlfriends.

A. weaker  

B. safer

C. slimmer  

D. stronger

3. How does the writer like the idea of dating among the students?

A. Dating is a nice chance for students to be romantic.

B. Studying is far more important than dating in school.

C. In high school dating can surely lead to future marriage.

D. Dating in high school is sure to hurt your future family.

4. The underlined word "it" in the last paragraph might refer to________.

A. the title of boyfriend or girlfriend at school

B. advice given by both teachers and parents

C. the pressure from school lessons and sports

D. the relationship between students of opposite sexes

“亲亲相隐”原则是( )在法律上确定下来的。

A．春秋时期

B．汉朝

C．唐朝

D．明朝