民意调查采取随机抽样的方法的最大优点是()
A、排除主观选择,样本具有代表性
B、省时、省力
C、具有一定的准确性
D、样本容量可控制
参考答案:A
_____ me most was his coming to our class.
A.It surprised
B.What surprised
C.Being surprised
D.To be surprised
A () is a functional unit that interprets and carries out instructions.
A.memory
B.processor
C.storage
D.network