After he became conscious, he remembered __________ and __________ on the head with s rod.

A．to attack; hit

B．to be attacked; to be hit

C．attacking; be hit

D．having been attacked; hit

根据2010年颁布的武汉市殡葬管理办法，禁止擅自将公益性公墓改变为经营性公墓。城市公益性公墓的墓碑应当（）。

A、竖置

B、横置

C、卧置

D、平置