问题 单项选择题

关于近距离放疗的特点描述错误的是()

A.使用放射性同位素

B.有效治疗距离短,约在5mm~5cm之间

C.射线能量小部分被组织吸收

D.其放射源强度较小

E.剂量分布遵循平方反比定律

答案

参考答案:C

解析:近距离放疗是将密闭的放射源直接放入人体需要治疗的部位进行放射治疗,治疗距离较短,一般5mm~5cm。由于放射源放置在肿瘤组织中或紧贴肿瘤组织,射线能量大部分被组织吸收。

选择题
阅读理解

Ad.1  April fool’s party

On Friday, April 1, Inner Affair goes back to the days of funk! Classic Tunes from the 70’s and 80’s by DJs Den & Sion.9 pm till late.

Tickets:Free entrance for those in costume, otherwise 50 yuan(US $6)

Time/date:9pm, April 1

Place:Inner Affair, 1/F Qiankun Dasha, 6 Sanlitun xiliujie, Chaoang District

Tel:8454-0321

Ad.2  Language in use

Enjoy free in-house coffee, tea and beer as well as music and dancing.Practice your Chinese, make friends and have fun.

Time/date:7 to 9 pm, March 25

Place:Language In Use Club, 2/F, Science Fortune Centre, 8 Xueqing Lu, north of Xueyuan Lu, Haidian District.

Ad.3  The “worst ” party

Organized by 0-zone productions, the party is set to be “the worst ever,” with the lamest music from the 60s, 70s and 80s.Special prizes will be awarded to the worst dressed or for bad fashion sense.

Tickets:Free entrance

Time/date:9 pm, April 1

Place:Pula Pula, Tianze Lu, Oriental Seven Colors Plaza, Chaoyang District

Ad.4  La Nuit Francaise

Again on the 2nd Thursday of the month La Nuit Francaise will be held at Le Rendezvous.The monthly event is an opportunity for all French people and everyone interested in France of speaking French to gather together.

The evening features three glasses of wine and canapés for participants and a special exhibition.

Time/date:7 to 10pm, April 14

Place:Le Rendez-vous, 3 Gongti Beilu, across from the Pacific Century Plaza Chaoyang

Ad.5  Marco V

Dutch DJ Marco V drops by Banana for a gig which is supported by Hong Kong’s DJ Spark.

Marco V has been around for many years, as an inventive, style-blending deejay and successful and devoted producer.His spinning is energetic, crowd-pleasing and never sees an empty dance floor.He was ranked No 15 in this year’s international DJ MAG DJ Top 100.

Tickets:40 yuan (US $ 4.80) in advance, 50 yuan(US$6) at the door, both include a free drink.

小题1:Which of the following is NOT True of Ad.1and Ad.3 ?

A.The two parties will be held on the same day.

B.The two parties will be held at the same time.

C.The entrance fees of the two parties will not be charged.

D.Some old music will be played at the parties.小题2:Which of the following is intended for the Chinese learners?

A.Marco V

B.La Nuit Francaise

C.Language in use

D.The “worst” party小题3:Which of the following events takes place every month?

A.Marco V

B.La Nuit Francaise

C.The “worst” party

D.Language in use小题4:We can infer that _____.

A.Marco V is a newly-established band

B.La Nuit Francaise may be French words

C.The “worst” party will attract a lot of college students

D.You will enjoy free drink at April fool’s party