The students are_____Guangzhou Asian Games.[ ]

A. talking with    

B. talking about

C. talking to    

D. talking at

男，3个月。生长发育良好，体重为5kg，因母亲患慢性疾病，需停用母乳而改牛奶喂养

每日所需水分是( )

A．850ml

B．750ml

C．650ml

D．550ml

E．450ml