It’s said that the power plant is now___ large as what it was.

A．twice as

B．as twice

C．twice much

D．much twice

对肠道杆菌的共同特性叙述错误的是

A．均为Gˉ杆菌

B．均为条件致病菌

C．鉴别依据生化反应

D．鉴别依据抗原构造

E．均含有菌体(抗原