如果用人单位的规章制度未经公示或者对劳动者告知，该规章制度对劳动者不生效。( )
参考答案：对
解析： 本题考查建立劳动规章制度的程序。
Lisa, now stop for a short break. You should know that you _____ all the morning. [ ]
A. are working
B. had been working
C. have been working
D. have worked
电动门巡检项目？
