问题 单项选择题 A1/A2型题

常用于凝血象检查和血液保养液中的抗凝剂是 ()

A.EDTA

B.肝素

C.枸橼酸钠

D.草酸钠

E.双草酸盐

答案

参考答案:C

解析:枸橼酸钠能抗凝,对V因子有保护作用,能防止细胞溶解,对细胞毒性小,在输血后被机体利用。固常用于凝血象检查和血液保养液的抗凝。

完形填空

The people below are all trying to choose which TV program to watch. After the description of these people, there is information about five TV programs A-E. Decide which program would be most suitable for the person mentioned in questions 1-5 and then mark the correct letter (A-E) on your answer sheet.

小题1:Although Rob lives a quiet life in a small village, that doesn’t stop him from wanting to find out about the latest scientific development.

小题2:Bella enjoys eating out but can’t afford to spend very much at the moment as she is saving for a holiday. She has never learnt how to cook, so now might be quite a good time to find out!

小题3:Dan is interested in taking wildlife photographs and enjoys the kind of program which gives him a chance to see a professional photographer at work.

小题4:Gina is a music teacher. Although she prefers classical music, she likes to follow the kind of music that interests the teenagers she teaches.

小题5:Ron’s wife is in hospital. He wants to finds a program suitable for his three-year-old son while he gets on with the housework and prepares a meal.

TODAYS TELEVISION PROGRAMME PREVIEW

A.TV1 7:20 p.m. Find out more about Australia’s animal life. This film was made last year by one of Australia’s best-known cameramen, Dougie Bond. He spent over 200 hours filming the birds, animals and fish that inhabit this beautiful continent and for the first time brings some of these unusual animals to our TV screens.

B.TV3 9:00p.m. The popular science program is back with the latest in technology and medicine. This week, cars that run on sunlight and the story of one baby’s fight to live.

C.TV1 5:15p.m. Busy parents? Bored children? Do you want something educational to entertain your children while you do something else? This popular magazine program is for the under-fives. More music, fun, songs and games with Carla and Larry.

D.TV3 8:45p.m. If you’ve always wanted to cook, now’s your chance to learn. In the studio are two chefs who will take you through some simple recipes step by step. This is a repeat of the popular series shown last year, and available from good bookshops.E. TV3 7:40p.m. The latest new music. Pete Hogg looks at the best of the current rap, raga and new jack swing plus new video releases. This is the program that tells you all about what’s happening on the music scene and brings you interviews with tomorrow’s young artists.

多项选择题