施工单位应于开工前（），填写《施工组织设计（方案）报审表》送监理单位。
A.3天
B.一周
C.二周
D.10天
参考答案：B
铅酸蓄电池正极板栅越厚，寿命越短。
He is ________ scolding his child,which is not a good way to educate him.
A．often
B．usually
C．frequently
D．always
