Ten years ago, the population of our village was ______ that of theirs.

A．as twice large as

B．twice as large as

C．twice as much as

D．as twice much as

MRPII的缺点之一是( )。

A．MRPII把各业务子系统组织起来，形成了一个对生产进行全面管理的一体化的系统

B．MRPII的所有数据来源于一个中央数据库，各个子系统在统一的数据环境下工作

C．MRPII具有模拟功能

D．MRPII的生产计划和控制方式为推动式