If the virus of bird flu continues to grow at a fast speed,it could become a bigger ___ than SARS,which killed about 800 people last year.a.question b.problem c.disease为什么这里选A,而不是 B,怎么区别?

If the virus of bird flu continues to grow at a fast speed,it could become a bigger ___ than SARS,which killed about 800 people last year.a.question b.problem c.disease为什么这里选A,而不是 B,怎么区别? the bird flu is very serious in Turkey ,where 18people have reportedly been infected with the virus ,of whom two----.A.death B.have died C.have been died 为什么 what is the structure of a typical virus? I asked the girls if they were afraid of Bird Flu.改为直接引语I___ ___the girls,were they afraid of Bird Flu. According to one WHO official,the longer the virus of bird flu spresds among animals,_____.A.the higher is the rate of human infection B.the rate of human infection will be higher C.the higher the rate of human infection D.the higer will be the rate 英语翻译Many people fear it could be the next global epidemic,especially as scientists who studied tissue from the bodies of people who died of the 1918 Spanish Flu proved that Bird Flu is a modern adaptation of the same virus. the Bird Banding Centre of China Song of the caged bird 空间链接 请帮忙改改英语作文,If I were a birdIf I were a bird,I would fly in the sky freely.If I were a bird,I wouldn't be worried about my study,and I wouldn't take the examination,too.I think bird is a symbol of freedom,it can fly to everywhere.if I 虚拟语气否定句的倒装They would go to the meeting if they should not be busy tomorrow.If the patient hadn't been cured of his disease,he wouldn't be able to go to work.If the doctors hadn't controlled the disease,the virus would have spread This could be the result of a damaged ,a failed download or a virus. The bird is singing on the t_____ of the house. a house of a bird还是the house of a bird How do you like the bird?(同义句)______do you ______ of the bird 英译汉：The quice distribution …The quick distribution of virus caused great damage to the network system across the country. i asked the girls if they were afraid of Bird Flu.改为被动语态 i___ ___ ___the girls,__ __ _bird flu i asked the girls if they were afraid of Bird Flu.改为被动语态 i___ ___ ___the girls,__ __ _bird flu The Bird of the Golden Land的翻译