A.
铁轨下铺枕木
B.
坦克装有履带
C.
刀刃磨得很薄
D.
书包背带很宽
答案:C
These days he has made _____ in his studies by working hard.
A.many progress
B.a lot of progresses
C.much progress
D.many a progress
增强大黄活血功效的炮制方法是()
A.蜜制
B.土炒
C.酒制
D.醋制
E.姜制