产品按专业化组织生产，使生产过程比较简单，有利于提高生产率和产品质量，降低成本。
参考答案：对
函数y=sin2x是（ ）
A．最小正周期为2π的偶函数
B．最小正周期为2π的奇函数
C．最小正周期为π的偶函数
D．最小正周期为π的奇函数
The villagers, _____ had been damaged by the flood, were given help by the Red Cross. [ ]
A. all of their homes
B. all their homes
C. whose all homes
D. all of whose homes
