其他芳烃卤化衍生物
参考答案:2903999090
解析:
海关商品名称:其他芳烃卤化衍生物海关编码:2903999090法定单位一:千克惠税:5.5%普税:30%增值税:17%
She pretended to be calm but _______she was more than nervous at the time she was being questioned. [ ]
A. in actual
B. actually
C. as matter of fact
D. in a fact
在粗甲醇多元组分的蒸馏中,轻关键组分指什么?重关键组分指什么?