5个数的平均数是6，问标准差是否大于10

a.其中4个等于一个数但也记不得了 b.最小的小于-3（一个负数，但不记得了）

用水管给一个圆柱进水，每分钟x立方，圆柱的水位每分钟上升y尺，问圆柱的半径

作文ai是highly-skilled employees will be more harmful than beneficial in the team work aa 桔子以前5元，现在30元，但在涨价的几年只有一次天气不好，所以说涨价是桔子农的责任。。。

语文第一题就是someone was sentenced by xxx in attempting to stop him from doing was sentenced by xxx in its attempt to stop him from doing

语文碰到很多jj，大家要留意今年和去年7,8月的语文jj。阅读jj里都有。