At no time      the rules of the game.It was unfair to punish them.

A．they actually broke

B．do they actually break

C．did they actually break

D．they had actually broken

细菌性肝脓肿的最常见致病菌是

A．粪链球菌、金黄色葡萄球菌和厌氧菌

B．大肠杆菌、金黄色葡萄球菌和厌氧菌

C．溶血性链球菌、金黄色葡萄球菌和厌氧菌

D．大肠杆菌、绿脓杆菌和厌氧菌

E．大肠杆菌、粪链球菌和厌氧菌