已知函数f（x）=Asin（2x+φ）（A＞0，0＜φ＜π），x∈R的最大值是1

下图四幅图中A在B的方向排列顺序正确的是（   ）

A．西北、东北、西南、西北

B．西北、西北、西南、东北

C．西南、东北、西北、西北

D．东北、西北、西北、西南

若诊断肾病综合征，以下的各项可偿还检查哪项最有意义

A．血浆蛋白定量

B．24小时尿蛋白总量

C．血胆固醇增高

D．血流变学检查

E．肌酐清除率

纵墙指与建筑短轴方向一致的墙。（）

You want something you can’t get by behaving within the rules, and you want it badly enough you’ll do it regardless of any guilt or deep regret, and you’re willing to run the risk of being caught. That’s how Ladd Wheeler, psychology professor at the University of Rochester in New York, defines cheating. Many experts believe cheating is on the rise. "We’re suffering a moral breakdown," Pinkard says. "We’re seeing more of the kind of person who regards the world as a series of things to be dealt with. Whether to cheat depends on whether it’s in the person’s interest." He does, however, see less cheating among the youngest students. Richard Dienstbier, psychology professor at the University of Nebraska in Lincoln, believes that society’s attitudes explain much of the increase in cheating. "Twenty years ago if a person cheated in college, that is extremely serious, he will be dropped for a semester if not kicked out permanently," he says. "Nowadays, at the University of Nebraska, for example, it is the stated policy of the College of Arts and Science that if a student cheats in an exam, the student must receive an "F" on what he cheated in. That’s nothing. If you’re going to fail anyway, why not cheat? Cheating is most likely in situations where the interests are high and the chances of getting caught are low," says social psychologist Lynn Kahle of the University of Oregon in Eugene.

1. The passage focuses on ________.

A. making the reader believe that cheating is immoral       

B. discussing the reasons for cheating

C. describing how students cheat in exams                       

D. suggesting how to control cheating

2. Cheating tends to occur in all the following situations except when ________.

A. one wants something badly             B. one can’t get something in a right way

C. it is not very likely to be found out       D. a series of things have to be dealt with

3. Which of the following is TRUE according to the passage?

A. It is forgivable to cheat unless money is involved. 

B. There has been an increase in cheating.

C. Most cheaters are college students.                       

D. Cheaters do not feel guilty and regretful.

4. What can be inferred from the passage?

A. Cheating is widespread because society is too understanding.

B. Cheating is the result of heavy pressure.

C. Cheating is cheating, whether in a test or on any other occasions.

D. Cheating comes together with civilization

我国拥有航空母舰后，有军事专家预测航空母舰上的舰载机会用具有优异性能的歼-10战机．歼-10战机满载起飞重量m=19500Kg，其发动机的推力F=127000N，起飞距离x=500m，起飞时速v=77m/s，最大速度为2.0马赫（1马赫为340m/s）．航空母舰飞行甲板长L=300m，最大航速v_m=15m/s．歼-10战机在航空母舰上起飞速度和陆地上相同，且起飞过程可简化为匀加速运动，所受阻力大小一样．现有二种方式助歼-10战机起飞，方法一：在航空母舰静止的情况下，用弹射系统给飞机以一定的初速度；方法二：起飞前先让航空母舰沿飞机起飞方向以最大速度匀速航行，并用弹射系统辅助．求：（所有结果均保留到整数位）

（1）歼-10战机在陆地上起飞前匀加速运动过程中加速度a的大小和所受阻力f的大小；

（2）歼-10战机以方法一起飞，弹射系统使飞机具有的最小速度v₁；

（3）歼-10战机以方法二起飞，弹射系统使飞机具有的最小速度v₂．