既能泻下逐水,又能去积杀虫的药物是()
A.槟榔
B.甘遂
C.使君子
D.牵牛子
E.京大戟
参考答案:D
This is the first time I __________ to the capital to attend the celebration ceremony.
A.came
B.come
C.have come
D.had come
轧钢方法按轧制产品的成型特点不同可分为一般轧制和特殊轧制。