问题
单项选择题
下列有关象素的概念，正确的是：
A．象素就是体素
B．象素是指cT图像中按矩阵排列分隔的基本组成单元
C．象素是一个三维概念
D．象素与体素之间没有关系
E．象素越小图像的分辨率越低
答案
参考答案：B
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下列有关象素的概念，正确的是：
A．象素就是体素
B．象素是指cT图像中按矩阵排列分隔的基本组成单元
C．象素是一个三维概念
D．象素与体素之间没有关系
E．象素越小图像的分辨率越低
参考答案：B
完形填空。
Thomas Edison wore 1 caps during his life, 2 thinking caps, the caps of many famous
schools and colleges. But the most important cap was his thinking cap. It had saved his mother's 3 .
One day when he was a boy his mother fell ill. The doctor wanted 4 her an operation (手术). But
the light in the room was not bright. Edison quickly 5 his thinking cap and he found a way 6 his
mother. Edison was good at 7 his hands and his head. He was the most interested 8 electricity.
We can see his 9 everywhere because they are very common. They were 10 by Edison's thinking
cap.
| ( )1. A. much | |
| ( )2. A. as | |
| ( )3. A. living | |
| ( )4. A. give | |
| ( )5. A. take off | |
| ( )6. A. save | |
| ( )7. A. use | |
| ( )8. A. at | |
| ( )9. A. inventors | |
| ( )10. A. inventing | B. many |
| B. for |
B. life
B. to give
B. put off
B. to save
B. make
B. of
B. invent
B. invented
C. such as
C. lives
C. to gave
C. put down
C. saving
C. using
C. in
C. invents
C. made
D. was like
D. alive
D. give
D. put on
D. saved
D. making
D. on
D. inventions
D. making