控制子痫的首选药物是

A．冬眠1号
B．硫酸镁
C．肼屈嗪
D．20%甘露醇
E．双氢克尿塞

When you study the local map, you'll find this town is          ．

A．twice the size of that one

B．twice as a large town as that

C．twice as larger as that one

D．twice as larger a town as that