定性评估的方法有多种，（）、（）、（）和座谈都是定性评估的范畴。

树结点的层次

完形填空  (共10小题；每小题1.5分，满分15分)  

阅读下面短文，从短文后所给各题的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。

The study of the effects of music on the mind and brain has been a subject of interest for many. The   16  has concluded that music does have positive effects on the mind and brain.

Music is found to affect the   17   of learning and thinking. If work is   18   by quiet and comforting music, it helps the listener think, analyze and work faster in a more   19  manner. Music   20   a positive attitude in the listeners and provides them with motivation(动力;动机). Surveys have shown that music brings about remarkable improvements in the   21  skills of students. Listening to pleasant music, while doing a difficult task, can make   22  seem easier.

Music has a   23   effect on the interpersonal skills of an individual.  24  that we face in life are often the result of lack of confidence and lack of desire to learn. Students’ poor academic results are often a(n)   25  of their lack of motivation and their disinterest. Music lessons during school can help the students   26  their mental block. Music proves helpful in encouraging young children to venture new fields.

Music   27   plays a vital role in strengthening   28  . Certain tunes are known to activate all the parts of the listener’s body, thus   29  him/her in the performance of other creative tasks. Music is found to give students the capacity to trust   30  . Music stimulates the brain centers that deal with thinking, analyzing and planning, thus strengthening one’s organizational skills.

16. A. newspaper   B. book   C. research     D. time

17. A. joy         B. process       C. beginning   D. task

18. A. accompanied        B. created       C. done   D. composed

19. A. inefficient(低效的)         B. efficient      C. interesting          D. boring

20. A. reduces         B. combines    C. takes   D. develops

21. A. academic      B. physical       C. original        D. historic

22. A. music    B. learning      C. lessons        D. it

23. A. positive         B. negative     C. passive        D. harmful

24. A. Diseases       B. Successes   C. Failures       D. Difficulties

25. A. income          B. outcome     C. improvement      D. progress

26. A. live        B. love     C. hate    D. fight

27. A. never    B. still      C. ever    D. also

28. A. responsibility          B. creativity    C. duty    D. intelligence

29. A. benefiting     B. constructing       C. damaging   D. worrying

30. A. others B. teachers     C. themselves         D. texts

环磷酰胺在体外对肿瘤细胞无效，在体内可形成下列代谢产物，其中具有抗肿瘤活性的为( )。

A．4-羟基环磷酰胺

B．丙烯醛

C．磷酰氮芥

D．4-酮基环磷酰胺

E．去甲氮芥

以下争议可以申请行政复议的是（）

A、认为行政机关侵犯合法经营自主权的

B、申请行政机关履行保护人身权利，行政机关没有履行的

C、对具体行政行为所依据的部分规定合法性产生争议的

D、不服行政机关对民事纠纷作出的调解

简述无极绳连续牵引车组成。