橙C is the winner for the 15 th, congrats!? 题目(originating): it's a type of chemical engineering equipment,two words.the initial of the second word is 'c'. 本期的题目是一种化工设备,两个单词。第二个单词的首字母是c。 it would be better to tell us the function/purpose of the said equipment so as to target only one answer. for example, the answer of 1st question is various, such as: air compressor, distillation column, overhead condenser ...etc. 查看更多