肠梗阻保守治疗时最重要的是观察（）
A.腹胀
B.腹痛
C.恶心呕吐
D.肠绞窄迹象
E.排便
参考答案：D
Su Ning likes playing _______ and she also plays _______ very well.[ ]
A. the basketball; the piano
B. basketball; piano
C. basketball; the piano
D. the basketball; piano
会计基本概念是什么？
