怎样计算客户毛利率？
权力的种类有（） ["奖赏权力","强制权力","参照权力","合法权力","专长权力"]
According to the Chemical Data Guide，which reactive group(s) is/are not compatible with the products polybutene and o-xylene? （） ["Nitric acid","Amides","Alcohols，glycols","Phenols，cresol"]
在减数分裂中可以引起子代遗传组成多样性的因素有：（） ["等位基因彼此分离","部分非等位基因自由组合","同源染色体的交换现象","连锁群上基因的连锁现象"]
The abandon ship signal sounded by the vessels whistle is （）. ["6 short blasts and 1 long blast","long blast mare than 6 short blasts","more than 6 short blasts and 1 long blast","1 long blast of at least 10 second"]
什么是客户毛利率？
