单项选择。
you soccer with Jim on weekends?[ ]
A. Did; played
B. Did; play
C. Do; played
答案:B
小儿肺炎风热闭肺证的治法是()。
A.清热宣肺,涤痰定喘
B.辛凉宣肺,清热化痰
C.养阴清肺
D.益气健脾
E.温补心阳,救逆固脱
C++中封装性、继承性和【 】是面向对象思想的主要特征。