单词：papillomavirus cottontail rabbit papillomavirus
单词：papillomavirus cottontail rabbit papillomavirus 相关文章
By David McAlary Washington 28 February 2007 watch Barry Unger HPV report A sexually-transmitted virus that is a leading cause of female cancer deaths in developing countries is also very prevalent in the United States. It is the human papillomaviru
2007年VOA标准英语（二月）
Among the serious pests in orchards and tree plantations are the several native species of rabbits. These animals do considerable damage to garden truck and other farm crops, especially on lands recently opened to cultivation. North American rabbits
中级类英语听力
Mrs. Duck and Mr. RabbitMr. Rabbit said to Mrs. Duck, Come and work with me and you will get more money than you have ever had before. Mrs. Duck said, I will come.So Mrs. Duck worked with Mr. Rabbit. After some time Mrs. Duck said to Mr. Rabbit, I wa
趣味英语
The LAPD, The FBI, and the CIA are all trying to prove thatthey are the best at apprehending criminals. The Presidentdecides to give them a test. He releases a rabbit into aforest and has each of them try to catch it. The CIA goes in. They place anim
趣味英语
This is the VOA Special English Health Report. Male circumcision is the cutting off of a small amount of skin from the tip of the penis. In many parts of the world it is done when a baby is a few days old. However, in other parts of the world it is
VOA慢速英语2009年（四）月
There sat three unhappy, little kittens. Peter asked them what was wrong.
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