The fuberidazole was prepared by reaction of O - phenylenediamine with furfural at the presence of CTMABas catalyst.以邻苯二胺和糠醛为原料,以十六甲基三烷基溴化铵(CTMAB)为催化剂合成了麦穗宁....
他轻轻松开油门杆，轮船开始缓缓前行。He gently opened the throttle, and the ship began to ease forward.伦纳德在温室里悠然自得地给西红柿绑上撑杆。Leonard pottered round the greenhouse, tying up canes for the tomatoes.压下挡杆，直到听到挡挂好。Press the lever until you hear ...
The media persists in its portrayal of us as muggers, dope sellers and gangsters.媒体一直把我们描绘成抢劫犯、贩毒者和歹徒。Many home sellers remain stuck in a recessional rut.许多房屋的卖主仍然陷在经济衰退的困境中。The best deals can be obtained from motivated ...