问题 多项选择题

肾透明细胞癌CT增强扫描的强化特点是()

A.延迟期强化常不及肾实质

B.可为不规则边缘强化

C.可为不均匀斑片状强化

D.少数可无明显对比增强

E.动脉期强化明显

答案

参考答案:A, B, C, D, E

解析:肾透明细胞癌增强早期,肿瘤多有明显、不均一强化,延迟期强化常不及肾实质。

完形填空

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

小题1:, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?

小题2:. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. 小题3:. Although some books with hard covers are expensive, many books are printed today as paperbooks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater,小题4:.

Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. 小题5:.A good encyclopedia (百科全书), though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books, science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.

A.Television has not killed reading, however.

B.Some people think that as more and more people have televisions in their homes

C.Every home should have a good dictionary.

D.Books are still a cheap way to get information and enjoyment.E. and you can keep a book for ever and read it many times.

F. Fewer and fewer people will buy books.

G.TV programs are a chief provider of knowledge

问答题 简答题