These organisms penetrate into snails, multiply, and develop into cercariae , the infective form for man.这些毛蚴进体螺体, 繁殖和发育对人类有传染性的尾蚴.The tears also contain a potent microbe - killer called lysozyme, which guards me from in...
The country lies on the northwest of France.该国紧靠法国西北部。In northwest such boondocks, besides meat and wine, there're flower and grass. Rare.西北蛮荒之地, 大口吃肉大碗喝酒之余, 倒 不忘小花小草小情小调,难得.The wind is blowing from the northwest.风从...
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.At least one avian disease pathogen has been found.已经发现至少有一种禽病的病原体.B...
Families of six or seven are the norm in Borough Park.在区公园住宅区六口或七口之家十分普遍。a departure from the norm一反常态Of his age, the child is above the norm in arithmetic.在他那个年龄, 这个孩子的算术能力是超过标准的....
The recycling scheme gets its first try-out in rural Dorset.这些再循环方案在多塞特郡的农村地区首先试用。At Dorset Wharf go left to rejoin the river...在多塞特码头向左返回河道。...a peaceful Georgian house in the heart of Dorset...多塞特腹地一幢宁静的乔治王朝风格的房子The Na...
About 70% of the cocoa acreage is treated with insecticide.大约70%的可可树林地喷过杀虫剂。The Ivory Coast became the world's leading cocoa producer.象牙海岸成为世界上可可粉的主要产地。The cocoa industry dwindled because it became increasingly diff...