泌尿系结石病人主要的症状是（）
A.疼痛和血尿
B.尿频和尿痛
C.排尿困难
D.无痛性血尿
E.脓尿和血尿
参考答案：A
into the university was a great pleasure for his whole family.
A．Accepting
B．To accept
C．To be accepted
D．Being accepted
