甘肃省现有贫困人口多少万？

高致病性禽流感正在我国及世界部分地区肆虐，及时消毒是防治禽流感最好的方法之一．煤酚皂对禽流感病毒有抑制杀灭作用，煤酚皂的主要成分为甲基苯酚（化学式为C₇H₈O）．下列有关说法不正确的是（　　）

A．科学防治可有效杜绝高致病性禽流感对人类的危害，谈禽色变是完全没有必要的

B．煤酚皂是由碳、氢、氧三种元素组成的

C．煤酚皂属于氧化物

D．煤酚皂在空气中完全燃烧的产物是二氧化碳和水

阅读理解

     Teachers have long said that success is its own reward. But these days, some students are finding that

good grades can bring them cash and luxury gifts.

In at least a dozen states this school year, students who bring home top marks can expect more than just

thankfulness.

     The most ambitious experiment began in September, when seven states - Arkansas, Alabama,

Connecticut, Kentucky, Massachusetts, Virginia and Washington－won spots in an Mobil-funded

program that, in most cases, pays students $100 for each passing grade on advanced placement (AP)

college-prep exams.

     It's an effort to get low－income and minority students interested in the courses, says Tommie Sue

Anthony, president of the Arkansas Advanced Initiative for Math and Science. "We still have students

who are not sure of the value, who are not willing to take the courses," she says. "Probably the motivation will make a difference with those students."

     Gregg Fleisher of the National Math and Science Initiative, which runs the seven-state program, says

the effort is modeled on a program adopted by Dallas in the 1995-96 school year that saw AP

course-taking jump obviously. That program is now statewide.

     While many educators would be against offering kids cash for good grades, Fleisher and others say

the idea is simple: "It's an encouragement to get them to basically make the right decision and choose a

more strict class," he says. "This teaches them that if they work at something very hard and have a lot of

support, they can do something they didn't think they could do."

     An analysis of the Texas program last month by Cornell economist C. Kirabo Jackson found that it

linked to a 30% rise in the number of students with high SAT and ACT scores and an 8% rise in

college-going students.(Notes: 1.SAT: 美国学术能力评估考试；2. ACT: 美国大学入学考试.)

1. What does the passage mainly talk about?

A. Success is its own reward.

B .A new motivation for students.

C. Good grades deserves gratitude.

D. Success makes a difference.

2. What's the purpose of the experiment?

A. To offer poor students luxury gifts on their birthdays.

B. To help poor students to keep on with education.

C. To get relatively poor students interested in their studies.

D. To make an effort to raise the value of money.

3. Which of the following statements is TRUE?

A. Students who top at college - prep exams get $ 100.

B. The program didn't have any effect on student's achievements.

C. The program has been going on half a dozen states this year.

D. The program was probably first adopted by Dallas.

4. According to the passage, the program         .

A. encourages students to study harder

B. makes everything possible

C. helps students choose right classes

D. teaches students to spend money

施工机械技术检验的试验前检查包括（）。

A.机械的完整情况

B.外部结构装置的装配质量和工作可靠性，连接部位的紧固程度

C.润滑部位、液压系统的油质、油量的状况

D.电气系统的状况

E.观察机械运转状况

【2】 是按照程序语句行的自然顺序，依次执行语句。

指挥控制技术对作战行动的影响？