My cellphone looked quite similar to Alice’s , but it cost       hers.

A．as much twice as

B．more than twice as much as

C．twice as more as

D．twice so much as

关于恶性贫血，叙述错误的是（）

A.多数患者50~70岁发病

B.有贫血、胃肠道症状、神经系统症状和体征

C.常系淋巴细胞介导的自身免疫反应使胃壁细胞破坏，内因子分泌障碍所致

D.因手术切除胃组织引起的内因子缺少不属于恶性贫血

E.治疗上需要终身补充维生素B₁₂，宜口服给药