既善于治疗吐衄便血，又善于治疗肝火上炎之头痛目赤的药物是（）
A.侧柏叶
B.地榆
C.大蓟
D.槐花
E.小蓟
参考答案：D
His brother was born __________ May, 1981. [ ]
A. in
B. at
C. to
D. on
检修掘进机时，严禁怎样？
