问题
判断题
人体肺部血液流动的方向是：静脉→毛细血管→动脉。 （ ）
答案
×
题目分析：肺循环是从右心室开始依次经过肺动脉、肺部毛细血管、肺静脉至左心房终止，所以人体肺部血液流动的方向是：动脉→毛细血管→静脉，故题干的叙述是错误的。
点评：此题有一定的难度，解答此题的关键是熟练掌握血液循环的途径，可结合循环示意图进行记忆。
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人体肺部血液流动的方向是：静脉→毛细血管→动脉。 （ ）
×
题目分析：肺循环是从右心室开始依次经过肺动脉、肺部毛细血管、肺静脉至左心房终止，所以人体肺部血液流动的方向是：动脉→毛细血管→静脉，故题干的叙述是错误的。
点评：此题有一定的难度，解答此题的关键是熟练掌握血液循环的途径，可结合循环示意图进行记忆。
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| The aim of writing a letter of application is to help you to "sell" yourself.It should state __1__the job you want,and should tell what your abilities are and what you have __2__.It should be simple,human,personal and brief without __3__out any necessary fact. In writing a letter of application,bear in mind that the things a possible employer is most __4__to want to know about are your qualifications,your achievements and your aims.The opening paragraph is perhaps the most important part.If the first few sentences fail to __5__the reader's attention,the rest of the letter may not be __6__at all.Try to key your opening remarks to the needs or interests of the employer not to your own need or desires.For example,instead of beginning with "I saw your __7__in today's paper."you might say"I have made a careful study of your advertising during the past six months"or "I have made a survey in my neighbourhood to find out how many housewives __8__your product and why they like it." Try to __9__generalities.Be clear about the kind of job for which you are now __10__.College graduates looking for their first positions often ask "What can I __11__in a letter?Employers want experience,which,naturally,no __12__has."The answer is that everything you have ever done is __13__. It is important to write a good strong closing for your letter.__14__a specific request for an interview of give the possible employer something definite to do or expect.An excellent __15__is to enclose(内附)a stamped,selfaddressed envelope with your letter.That makes it easier for a possible employer to get in touch with you. | |||
| ( )1. A.clearly ( )2. A.found ( )3. A.sending ( )4. A.probable ( )5. A.pay ( )6. A.kept ( )7. A.advertisement ( )8. A.change ( )9. A.avoid ( )10. A.losing ( )11. A.offer ( )12. A.worker ( )13. A.success ( )14. A.Make ( )15. A.result | B. carefully B. done B. taking B. possible B. win B. continued B. report B. make B. remember B. applying B. supply B. beginner B. development B. Ask B. decision | C. obviously C. known C. leaving C. likely C. show C. written C. article C. sell C. protect C. preparing C. mean C. owner C. practice C. State C. promise | D. easily D. heard D. picking D. able D. fix D. read D. introduction D. use D. gain D. fitting D. provide D. manager D. experience D. Get D. idea |