单选题Which major change resulted from the prime of scientific times according to the author?

单选题Couples blessed with strength and aggression ______ looks are better off having boys, as these characteristics are of more use to males. A. other than B. rather than C. rather too D. in spite of

单选题The seminar, ______ by the Nobel Prize winner, probes the problem of wildlife extinction in African countries.

单选题on the first day when a pupil enters school, he is asked to ______ to the school rules.

单选题She is (furious of) her son's grades in school, (which) explains why Mark is jealous (of) Julia's high marks (on) the exam.

单选题It is useful to be able to predict the extent ______ which a price change will affect supply and demand. A. from B. with C. to D. for

单选题According to the passage, Jon Venables and Robert Thompson ______.

单选题 The newly designed system is ______ to genetic transfections, and enables an incubation period for studying various genes.

单选题The policeman tried to ______ the teenage driver to obey the traffic laws rather than fine him directly.(2002年厦门大学考博试题)

单选题Teachers need to be aware of the emotional, intellectual, and physical changes that young adults experience. And they also need to give serious (21) to how they can be best (22) such changes. Growing bodies need movement and (23) , but not just in ways that emphasize competition. (24) they are adjusting to their new bodies and a whole host of new intellectual and emotional challenges, teenagers are especially self-conscious and need the (25) that comes from achieving success and knowing that their accomplishments are (26) by others. However, the typical teenage lifestyle is already filled with so much com petition that it would be (27) to plan activities in which there are more winners than los ers, (28) , publishing newsletters with many student-written book reviews, (29) student artwork, and sponsoring book discussion clubs. A variety of small clubs can pro vide (30) opportunities for leadership, as well as for practice in successful (31) dynam ics. Making friends is extremely important to teenagers, and many shy students need the (32) of some kind of organization with a supportive adult (33) visible in the back ground. In these activities, it is important to remember that the young teens have (34) at tention spans. A variety of activities should be organized (35) participants can remain ac tive as long as they want and then go on to something else without feeling guilty and with out letting the other participants down.

单选题Distance education is enrollment and study with an educational institution that provides lesson materials prepared in a sequential and logical order for study by students on their own. When each lesson is completed, the student mails or transmits the assigned work to the institution for correction, grading, comment, and subject matter guidance by qualified instructors. Corrected assignments are returned promptly to the student. This exchange provides a personalized student-teacher relationship. If a student slows his or her pace or fails to send assignments, the school provides encouragement. Although some institutions provide employment placement information and assistance, no reputable school ever guarantees a job to graduates. Distance education and self-study are different. Self-study materials provide no instructional service. Corrected assignments, examinations, and special help provided by a qualified facility are vital to a good learning situation. However, these are not part of self-study. There are many self-study courses and recordings available, and they may have value, but they clearly are not correspondence or distance education courses. Some institutions offer combination courses that provide training-in-residence for students who complete their distance education lessons. In-service or on-the-job training is required or provided with other courses and is a feature of many vocational distance education programs. Quality distance education institutions screen prospective students to assure that only those who can benefit from the courses are enrolled. While there are educational prerequisites for some academic subjects, interest and aptitude are the primary factors leading to success in most distance education courses. Because they provide alternative educational opportunities, distance education institutions try not to deny a prospective student the opportunity to succeed in a course—interest and experience are good indicators of future success. Distance education courses vary greatly in scope, level, and length. Some have few lessons and require only weeks to complete, while others have a hundred or more assignments requiring three or four years of conscientious study. Also, a wide variety of subjects is offered. Subjects include yacht design, accounting, medical transcription, nutrition, robotics, travel agent training, gun-repair, gem identification, computer programming, catering and cooking, and earning an entire high school diploma, just to name a few. There is an increasing recognition of "distance education" and many colleges offer credit for their distance learning courses or accept some distance education credits of resident students working toward a degree. In fact, many distance education institutions award their own academic degrees. Acceptance of students and awarding of academic credit is the prerogative of the receiving academic institution. Also, the employing organization may set its own credit acceptance policies.

单选题Differences in positions adopted by oxygen and hydrogen atoms Uaccount for/U variations in the crystalline structure of different forms of ice.

单选题Although this could be seen as a strength because it allows flexibility, it can also be argued that it invalidates the theory; in this case several people's rights must be relinquished to reach a conclusion.

单选题Perhaps my proudest achievement ______ has been setting up the first shift workers' day nursery in the UK, providing care for the children of health service staff.

单选题We don't encourage them to ______ in any solitary amusements. A. risk B. revive C. indulge D. suspend

单选题How is the experiment with 129 patients related to the argument stated in Paragraph 2?