城镇个体工商户参加基本养老保险,缴费基数可在当地上年度职工平均工资的()%范围内确定。
A.50-150
B.50-200
C.60-200
D.60-300
参考答案:D
Dressed in a newly-bought skirt , _________.
A.I could hardly recognize her
B.nobody could recognize her
C.she could hardly be recognized by me
D.there was nobody who could recognize her
已知原油加工量为10000t/d,共消耗破乳剂200kg,求破乳剂的PPm浓度?