方案开发五个里程碑：项目启动、项目前提、（）、项目确定、方案确认。
A.造型决定
B.产品定义
C.B认可
D.先期批量
参考答案：B
There would be not a good harvest of wheat in North China this year _______ the big snow.
A．in spite of
B．apart from
C．due to
D．in case of
