治疗胃肠实热积滞，大便燥结，常相须为用的药物是（）
A.大黄
B.甘遂
C.番泻叶
D.芒硝
E.京大戟
参考答案：A, D
,mother will wait for him to have dinner together.
A．However late is he
B．However he is late
C．However is he late
D．However late he is
爆炸物是主要由（）、外壳三部分组成的能产生爆炸的装置。
A、起爆器材
B、引信
C、电雷管
D、主装药
