以下隧道排水作业的规定中，错误的是（ ）。

sser / ice cream / painkiller / training / relieved / painful / Facebook You can make a toothache better with this: _______1_______ An arrangement to see somebody at an agreed time and place: _______2_______ The person you go to get your haircut:________3______ The process of learning skills for a job or an activity:_______4________ Feeling relaxed and no longer worried about something:_________5_______ When a part of your body hurts:______6_________ A person who can help you if you have problems with your teeth:_______7________ Can be had or taken:________8_______ A site on the Internet where you can chat to friends and post news and photo:_______9_______ To decide not to do something that was planned:_______10________ A sweet, frozen food:______11______ To talk to somebody:______12________

A.严禁在挖方坡脚下休息和存放机具
B.开挖砂层应自上而下进行
C.在路基两侧同时作业时，迎风侧和背风侧的施工不应相互错开
D.弃土堆应设置在背风一侧