病态窦房结综合征是由于（） A.心肌细胞自律性升高 B.单纯窦房结传导功能障碍 C. 发布时间：2017-08-19 00:35 │ 来源：www.tikuol.com 题型：单项选择题 问题： 病态窦房结综合征是由于（）A.心肌细胞自律性升高B.单纯窦房结传导功能障碍C.以上均不对D.单纯窦房结起搏功能障碍E.窦房结起搏功能、传导功能均有障碍
题型：单项选择题 完形填空。 Today, there are many avenues open to those who wish to continue their education. However, nearly all require some 1 in one's career in order to attend school full time. Part-time education, that is, attending school at night or for one weekend a month, tends to drag the 2 out over time and puts the completion of a degree program out of reach of many people. 3 , such programs require a fixed time commitment which can also impact 4 on one's career and family time. Of the many 5 to teaching and learning, however, perhaps the most flexible and accommodating is that called distance learning. Distance learning is an educational method, which allows the studentsthe 6 to study at his or her own pace to achieve the 7 goals, which are so necessary in today'sworld. The time required to study may be set aside at the student's convenience with due 8 to alllife's other requirements. Besides, the student may 9 in distance learning courses from virtually anyplace in the world, while continuing to pursue their chosen career. Tutorial assistance may be 10 through regular airmail, telephone, fax machine, teleconferencing and over the Internet. Good distance learning programs are characterized by the inclusion of a subject 11 tool with every subject. This precludes(排除) the requirement for a student to travel away from home to takea test. Another characteristic of a good distance-learning program is the 12 of the distance-learning course with the same subject materials as those students taking the course on the home campus. The resultant diploma or degree should also be the same whether distance learning or on-campus study is employed. In the final analysis, a good distance learning program has a place not only for the 13 students butalso the corporation or business that wants to work in partnership with their employees for the educationalbenefit, professional development, and business growth of the organization. 14 distance learningprograms for their employees gives the business the advantage of retaining(保留) career-minded people while 15 to their personal and professional growth through education. ( ) 1.A. experience( ) 2.A. process ( ) 3.A. Surprisingly( ) 4.A. appropriately( ) 5.A. complaints( ) 6.A. individuality( ) 7.A. professional( ) 8.A. desire ( ) 9.A. enroll ( )10.A. adequate ( )11.A. registration( )12.A. demonstration( )13.A. distinguished( )14.A. Sponsoring( )15.A. objectingB. break B. progress B. Additionally B. reasonably B. attitudes B. responsibilityB. academic B. ability B. evolve B. vacant B. participationB. equivalence B. outstandingB. Requiring B. responding C. interest C. property C. FortunatelyC. negativelyC. difficultiesC. flexibility C. relevant C. regard C. enclose C. availableC. investigationC. combinationC. independentC. IndicatingC. contributingD. change D. possibility D. Traditionally D. favorably D. approaches D. visibility D. separate D. account D. emerge D. reliable D. evaluation D. qualification D. individual D. Protesting D. adding 查看答案