Much research has been carried out in order to establish the

Much research has been carried out in order to establish the 1.Only when the research has been carried out______whether t 英语翻译The research was carried out in a polyethylene covered,n The radio set last week has been out of order The research requires more money than has been put in. 英语翻译Considerable research studies were carried out to invest 英语翻译An initial investigation has been carried out and the fo Your e-mail has been changed. In order to verify 英语翻译Efficiency tests have been carried out in concentrated r 近义词选择In order to satisfy the need of space science research, 英语翻译The questionnaire has been used in a variety of research 一道高中英语语法问题想问下The purpose of the research program carried out