原式=mm+3-6(3+m)(3-m)•m-32=mm+3+3m+3=1．
This is the problem _____you can help him.
A.with which
B.to which
C.which
D.that
具有息风镇痉、攻毒散结、通络止痛功效的药组是（）
A.全蝎、蜈蚣
B.地龙、僵蚕
C.龙骨、牡蛎
D.石决明、决明子
E.天麻、钩藤
