下面这些论文标题是否合适？如果不合适，请修改：正确：①Auditory Perspectives(透视) of Different Types of Music②Y ellow Fever‘s(黄热病) Effect on Transportation and Commerce③The Single Community Concept：A Model for Adult Environmental Education④A Qualitative / Quantitative Analysis of the Administrative Management Institute at CornellUniversity⑤Populations：A Statistical Analysis错误：①Electromagnetic Fields Have Harmful Effects on Humans—→Harmful Effects of Electromagnetic Fields on Humans②How to Use Water Resources for Irrigation in Semiarid(半干旱) Land—→Using WaterResources for Irrigation in Semiarid Land③Physics and Art：Conceptual Linkages Can Be Uncovered—→Physics and Art：Uncovering Conceptual Linkages④Diamond Is Used for Electronic Devices—→Use of Diamond for Electric Devices⑤Water Quality Can Be Protected Through the Successful Integration of Research and Education —→Protecting Water Quality Through the Successful Integration of Research and Education⑥The Nature of Student Science Project Is Compared with Educational Goals for Science—→The Nature of Student Science Projects in Comparison to Educational Goals for Science⑦The Americans With Disability Act and Its Applicability to the Mentally Ill，Human Immune-Deficiency Virus and Acquired(后天的) Immune Deficiency Syndrome(综合症)Populations：A Statistical Analysis —→The Americans With Disability Act and Its Applicability to the Mentally Ill，HIV and AIDS判断下文摘自研究论文的哪个部分，并分析其结构和每句话的作用。

Result—结果：Table 11 shows the number of years to complete a doctoral program for both U.S. and international students at a major research university. As can be seen, international students on average complete doctoral programs in less time than U.S. students in all divisions. The difference in years to completion ranges from a relatively low 0.3 years in physical sciences/engineering and humanities/ arts to a high of 2.8 years in individual departmental programs.Discussion—讨论：The consistent difference in time to degree is not fully understood at present. However, one key factor may be motivation. Many international students have considerable external pressures，including sponsorship/scholarship restrictions, family obligat ions, and employer demands, which could influence the length of time it takes to earn a doctorate.根据下列各段话的内容和语言特点，判断各段话分别摘自研究论文正文中的哪个部分Method—方法：Male red-winged blackbirds were recorded and observed. Analog tape-recordings of vocalizations were completed and territorial behaviors were monitored for each subject during three separate 30 minute observation periods. Females were observed in each subject's territory during recording. Individual territories and perching positions were mapped for each subject.Result—方法：From the 41 responses received, only 5 were form schools whose students only completed team projects. 32 responses were from school whose students completed only individual projects. This is reflected in the high frequency of disagree and strongly disagree responses to question 28 （see Table1）.Method—方法：A copy of the questionnaire can be seen in Fig. 1. The questions were designed to match each of the eight goals and five methods for science as defined in this study. The questions were then examined by several professional educators in the field of science. The viewers' comments were used to develop questions for each goal. The experts' opinions were in agreement that the final version of the questionnaire was worded appropriately and that the content of the questions matched these goals for science education.Discussion—讨论：Science projects were rated overwhelmingly and consistently positive on each of the eight educational goals for science. In the minds of the teachers, science projects are an effective way to address the new educational goals. The rating frequencies show that teachers think science projects are especially effective in incorporating hands-on/minds-on science.Result—结果：The analysis shows 52 % of the graduates used their exhibits at events in their county （Fig. 4）。

Many graduates （64 % ）collected water samples in their county，56 % established a water sample collection point in their county for transport to a water testing lab，and 48 % demonstrated sample collection.Discussion—讨论：The plants produce viable shoot sections, which are capable of growth and may serve as vegetative propagules （繁殖体）。

Development of new tissues is a clear sign of healthy，growing shoot sections and indicates that the sections could go on to produce mature plants if left undisturbed. Under our growth conditions，80% of shoot sections could have matured into seed-producing plants.在下列句中增加或替换适当的词，以减弱句子的语气：1. The experience of older students is not necessary to be more successful with a science project. 将划线部分改为may not be2. One explanation for these differences is that teachers who most strongly believe science projects are valuable encourage their students to work harder and encourage them to go to science fair.将划线部分改为One possible explanation3.However, additional training is needed in disinfection alternatives, iron and hydrogen sulfide removal，and proper well construction.将划线部分改为may be needed4. Some fluctuation is inevitable，since only less than 20 students took the qualifying exam each year.将划线部分改为is probably inevitable5. As can be seen，the pass rate fluctuated quite widely.将划线部分改为appeared/seemed to fluctuate6. From 1989 until the end of the period covered，pass rates have steadily climbed.将划线部分改为appeared/seemed to have steadily climbed7. Other factors are the amount of research funding，the quality of the students themselves，and the priority given to doctoral funding.将划线部分改为Other possible factors8. In fact，the pass rate is cyclical.将划线部分改为seems to be cyclical9. Even so，the fact that 10 out of 15 students passed in 1985 caused the department to try and reduce its number of doctoral students the following year.将划线部分改为probably caused10. The overall results prove that the Quality Water for Home and Farm correspondence program met the objectives set for the program and was an effective method to deliver water quality and management training.将划线部分改为indicate文献类型及载体类型标识：专著[M]，论文集[C]，报纸文章[N]，期刊文章[J]，学位论文[D]，报告[R]，标准[S]，专利[P]开幕词由首部、正文和结束语三部分组成：首部包括标题、时间、称谓三项。