【单选题】Sandra Clark is a ___ star . [ ]
【多选题】变量数列中,各组变量值与频数的关系是( )
【单选题】Jean Wagner's most enduring contribution to the study is his insistence that it _______ in a relligious, as well as worldly, frame of reference.
D.
should have been analyzed
【判断题】Sandra a appris dans le journal qu’il y avait eu un accident.
【单选题】Sandra is a ________ star. [ ]
【单选题】( )是指物资从产品消费点到产品来源点的物理性流动过程的计划、实施和控制。