操纵桥厢安全钳装置的动作速度不应低于电梯额定速度的最大值为115%.且对于不可脱落滚柱式以外的瞬时式安全钳速度最大值不超过() m/s
A. 0.8
B. 1
C. 1.5
D. 2.0
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A.They reward businesses that eliminate food waste.B.They prohibit the sale of foods that
A. They reward businesses that eliminate food waste.
B. They prohibit the sale of foods that have gone stale.
C. They facilitate the donation of unsold foods to the needy.
D. They forbid businesses to produce more foods than needed.
在装有额定载重量的轿厢自由下落的情况下,安全钳装置应动作时轿厢的平均减速度应在()之间。
A. 0.Ig~0.2g
B. 0.2g~1.2g
C. 0. 2g~1 .0g
D. 1 .0g~l .2g
井蛙不可以语于海者拘于虚也,夏虫不可以语于冰者___________,曲士不可以语于道者束于教也。《庄子·秋水》
假如我是一只小鸟。我也应该用嘶哑的喉咙唱歌,这被暴风雨所打击着的土地_________________________这无止息地吹刮着的激怒的风和那来自林间的无比温柔的黎明??艾青《我爱这土地》