将ag某物质加入到足量水中,充分溶解后得到100g溶液,则其溶液中溶质的质量分数为[ ]
A、等于a%
B、小于a%
C、大于a%
D、以上三种情况均有可能
答案:D
— ____________________
— I'm fine, thanks.[ ]
A. How old are you?
B. What's your name?
C. How are you?
首先考虑的诊断是
A.膀胱癌
B.膀胱肉瘤
C.膀胱憩室
D.膀胱滤泡
E.输尿管口囊肿