Proper infection dosage and routes were selected to make the chickens artificially infect avian colibacillosis successfully.选择适宜的攻毒剂量和攻毒途径,诱发淮南麻黄鸡大肠杆菌病.The dosage of technological parameter and feasible emulsification an...
古德曼先生，那个问题你怎么看？Mr Goodman, do you have any thoughts on that?彭德古德把旅行拖车里的沙子铲了出来。Pendergood had shovelled the sand out of the caravan.他听了一整夜古德斯通的夸夸其谈.He had been listening to Goldstone's rantings all night....
Now, Ladybird, never you stir from that fire till I come back!小鸟儿, 你可千万别离开壁炉,等我回来!'I am very much put out about my Ladybird.'“ 我为我那小鸟儿着急死了. ”'I don't suppose anything about it but what Ladybird tells ...