问题
解答题
张师傅改进生产工艺后，制作一个零件所用的时间比过去缩短了50%，他的工作效率提高了______%．
答案
现在工作效率：
1÷[1×（1-50%）]，
=1÷[1×50%]，
=1÷50%，
=2，
（2-1）÷1，
=1÷1，
=100%，
答：他的工作效率提高了100%，
故答案为：100．
搜题请搜索小程序“爱下问搜题”
张师傅改进生产工艺后，制作一个零件所用的时间比过去缩短了50%，他的工作效率提高了______%．
现在工作效率：
1÷[1×（1-50%）]，
=1÷[1×50%]，
=1÷50%，
=2，
（2-1）÷1，
=1÷1，
=100%，
答：他的工作效率提高了100%，
故答案为：100．
| 阅读理解。 | |||
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| 1. Lucy likes skating. Which ad. is she probably interested in? | |||
| A. Ice World B. Water World C. Nancy's Gym D. We don't know | |||
| 2. You can go to swim in Water World at _____. | |||
| A. 8:00am B. 9:00am C. 7:30am D. 10:00pm | |||
| 3. Which costs the most for an adult? | |||
| A. Keeping fit at Nancy's Gym B. Swimming in Water World C. Skating in Ice World D. Don't mentioned it. | |||
| 4. If a ten-year-old kid goes to the Water World with his parents, how much they should pay. | |||
| A. $27 B. $24 C. $17 D. $30 | |||
| 5. If you want to know some information about losing weight, you should call _____. | |||
| A. 45562233 B. 21518296 C. 88682526 D. 32276889 |