下列哪项不属于计算机内部采用二进制的好处______。
A．便于硬件的物理实现
B．运算规则简单
C．可用较少的位数表示大数
D．可简化计算机结构
参考答案：C
解析： 计算机内部程序和数据采用二进制代码表示。二进制只有0和1两个数码，既便于硬件的物理实现，又有简单的运算规则，故可简化计算机结构，提高可靠性和运算速度。但表示同样大小的数，二进制往往需要更多的位数，有数字冗长，书写繁复的缺点。因此在计算机技术文献的书写中，常常转换为十六进制表示。
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| It was a beautiful day. The weather was perfect for a picnic, so when lunch time came, we set our sights on a small 1 in town. We decided to 2 up by the pond near the entrance. Then my friend Robby 3 for a hot dog stand (摊), and I decided to keep her company (陪伴). We 4 the man put together the perfect hot dog just the way Robby wanted it. 5 when she took out her money to pay him, the man 6 us. He said, "This is my freebie (免费赠品) of the day." We thanked him and 7 our friends in the park. On our way back, I was 8 by a man sitting alone nearby, 9 at us. I could tell by his appearance that he hadn't 10 for days. Another homeless person, I thought. But when Robby and I went to the garbage can to 11 away our lunch bag, I heard a 12 voice ask, "There isn't any 13 in the bag, is there?" It was the man who had been watching us. "No, I 14 it already." "Oh" was his only answer, with 15 in his voice. He was obviously 16 . Suddenly Robby said, "I'll be right back. Please wait for a minute," and ran off. I watched with 17 as she went across to the hot dog stand. Then I 18 what she was doing. She bought a hot dog and gave it to the man. "I was just passing on the 19 that someone gave to me," Robby said. That day I learned how generosity can go 20 than the person you give to. By giving, you also teach others how to give. | |||||
| ( )1. A. park ( )2. A. show ( )3. A. sought ( )4. A. watched ( )5. A. So ( )6. A. frightened ( )7. A. reminded ( )8. A. attracted ( )9. A. waving ( )10. A. drunk ( )11. A. throw ( )12. A. serious ( )13. A. trash ( )14. A. sold ( )15. A. doubt ( )16. A. hungry ( )17. A. admiration ( )18. A. recognized ( )19. A. kindness ( )20. A. wider | B. yard B. meet B. searched B. helped B. And B. amused B. invited B. pulled B. staring B. worked B. put B. low B. paper B. fell B. shame B. angry B. curiosity B. believed B. friendship B. further | C. garden C. dress C. looked C. ordered C. But C. surprised C. called C. attacked C. laughing C. exercised C. get C. sweet C. food C. ate C. pleasure C. calm C. excitement C. imagined C. peace C. deeper | D. beach D. pick D. headed D. made D. Thus D. interested D. joined D. injured D. smiling D. showered D. take D. strong D. bottles D. bought D. disappointment D. nervous D. concern D. realized D. respect D. higher | ||