DDTs and HCHs serum level were detected by EC - ECD .运用GC -ECD 方法检测血清中有机氯农药DDTs和HCHs水平.In DDTs the residual level of p, p?DDTs中p, p?The residual levels of DDTs, HCHs in soil were different with different utilization type...
“瞧，又来了不是？又惹孩子伤心！”雪莉说。"There you go again, upsetting the child!" said Shirley.看到他们这个样子可真让我伤心。It really breaks my heart to see them this way.那笔钱带来的只有伤心、痛苦和悲剧。All that money brought nothing but sadness and misery and traged...
Southwest phoenix You Shan, fabulous Feng Aoxiang having celestial being hereat and renown.西南的凤游山, 传说有仙凤翱翔于此而名.With the cultural dissemination, other ethnic groups in west Asia and southwest Asia adopted cuneiform.楔形文字传播...
The symbol mark of art of Tibetan buddism and often seeing at Buddhist monastery in Tibet.在藏传佛教艺术中更是无处不见的象征性标志.This photo focused on vendors outside the Potala Palace in Lhasa , Tibet.这张照片的主题是布达拉宫外的小贩们.We won’t allow Tib...
她将文件放入碎纸机。She was feeding documents into a paper shredder.他吩咐员工将机密文件用碎纸机销毁。He instructed staff to shred sensitive documents.她努力说服我买一台自己的碎纸机。She tried to sell me the idea of buying my own paper shredder....