链传动的特点是能保证准确的传动比、传递的功率大、传递效率高、过载保护，对安装和维护要 发布时间：2017-03-01 22:47 │ 来源：www.tikuol.com 题型：判断题 问题： 链传动的特点是能保证准确的传动比、传递的功率大、传递效率高、过载保护，对安装和维护要求较高。
题型：判断题 完形填空。 "What's the matter, Mum?" As soon as I came through the door, I found that my mother was unhappy. This was unusual: she usually 1 the door and welcomes me with a smile! "She's dying,"Mom says 2 . I know what she means. The tulip (郁金香), Mother's favorite flower, isdying. A month ago, we moved 3 our new house and Mom bought a very beautiful tulip. Mom liked it verymuch. 4 she was free, she would sit in her armchair beside the tulip 5 enjoy its beautiful color. She treated it like a baby and looked after it 6 . She put the tulip by a window and moved it from one place to 7 to give it enough sunshine. The first thing she did when she 8 every morning was to waterthe tulip. Mom also fertilized (施肥) it many times. She hoped that with great care, the tulip would become more and more beautiful and stronger. However, it died because Mom gave it 9 sunshine, water and fertilizer. It's true that mother loved the tulip. But this kind of love can be 10 . Love can sometimes kill whatyou love. ( ) 1. A. closes ( ) 2. A. happily( ) 3. A. into ( ) 4. A. Though ( ) 5. A . or ( ) 6. A. slowly ( ) 7. A . other ( ) 8. A. got up ( ) 9. A. too much( )10. A. helpful B. takes B. quietly B. around B. Because B . and B. brightly B. place B. made the bedB. much too B. harmful C. keeps C. quickly C. across C. After C . for C. carefully C. another C. went to bedC. too many C. useful D. opens D. sadly D. with D. Whenever D. but D. beautifully D. two places D. brushed her teethD. so many D. successful 查看答案