问题 单项选择题

在保证获取必要的诊断资料前提下,采取措施错误的是()

A.尽可能采用最小辐射强度

B.辐照时间长短无所谓

C.用最短辐照时间

D.对早孕胚胎最好不做或少做超声检查

E.对3个月以上胎儿检查应控制在3~5分钟内

答案

参考答案:B

阅读理解

The Cambridge Science Festival Curiosity Challenge

Dare to Take the Curiosity Challenge!

The Cambridge Science Festival (CSF) is pleased to inform you of the sixth annual Curiosity Challenge. The challenge invites, even dares school students between the ages of 5 and 14 to create artwork or a piece of writing that shows their curiosity and how it inspires them to explore their world.

Students are being dared to draw a picture, write an article, take a photo or write a poem that shows what they are curious about. To enter the challenge, all artwork or pieces of writing should be sent to the Cambridge Science Festival, MIT Museum, 265 Mass Avenue. Cambridge 02139 by Friday, February 8th.

Students who enter the Curiosity Challenge and are selected as winners will be honored at a special ceremony during the CSF on Sunday, April 21st. Guest speaker will also present prizes to the students. Winning entries will be published in a book. Student entries will be exhibit and prizes will be given. Families of those who take part will be included in the celebration and brunch will be served.

Between March 10th and March 15th, each winner will be given the specifics of the closing ceremony and the Curiosity Challenge celebration. The program guidelines and other related information are available at: http://cambridgesciencefestival.org.

小题1:Who can take in the Curiosity Challenge?

A.School students.

B.Cambridge locals.

C.CSF winners.

D.MIT artists.小题2:When will the prize-giving ceremony be held?

A.On February 8th.

B.On March 10th

C.On March 15th..

D.On April 21st.小题3:What type of writing is this text?

A.An exhibition guide.

B.An art show review.

C.An announcement.

D.An official report.

单项选择题