具有泻下攻积、润燥软坚、清热消肿功效的药物是（）
A.大黄
B.甘遂
C.芒硝
D.番泻叶
E.郁李仁
参考答案：C
Greatly frightened by the terrible scene, _____. [ ]
A. tears came to my eyes
B. my heart was full of fright
C. my body trembled
D. I couldn't help crying out
单纯线条从形态上分别有什么（）
A.直线
B.曲线
C.虚线
D.斜线
