题型:问答题 简答题 完形填空。 Today people can use the phone to talk with others almost anywhere on the earth. But 1 you use the phone, you can't see the person you are talking with. That 2 change in the future. Now some people are using a kind of telephone called the picture phone or a vision phone (视频电话). Two people 3 are talking can see each other with it. Picture phones can be useful when you have 4 to show the person you are calling. They may have other uses in the future. One day you may be able to ring up a 5 and ask to see a book. Then you'll be able to 6 the book over your picture phone. Also you may be able to do shopping through your picture phone. If you see something 7 the newspaper that you want to buy, you can 8 the shop. People at the shop will showyou the thing you're 9 in over the phone. You'll be able to shop all over the town and never even leave yourroom. The picture phone is really a 10 phone. More and more people will use it. ( )1. A. if ( )2. A. can’t ( )3. A. whom ( )4. A. something( )5. A. shop ( )6. A. read ( )7. A. in ( )8. A. visit ( )9. A. interested( )10. A. useless B. when B. must B. who B. nothing B. school B. see B. about B. go B. bored B. helpless C. before C. may C. which C. everything C. library C. watch C. on C. call C. interesting C. helpful 查看答案
题型:问答题 简答题 患者男性,65岁,无临床症状,健康查体时发现PSA升高,血清t-PSA为43μg/L,f-PSA为5.2μg/L,f-PSA/t-PSA为12.1%。该患者最可能患的疾病为().A.前列腺癌B.前列腺炎C.前列腺肥大D.泌尿系感染E.慢性肾小球肾炎 查看答案
题型:问答题 简答题 影响计算机图像质量的主要参数有()。A.颜色深度、显示器质量、存储器大小 B.分辨率、颜色深度、存储器空间大小 C.分辨率、存储器大小、图像加工处理工艺 D.分辨率、颜色深度、图像文件的尺寸 查看答案