因含糖分多而极易泛油的中药是()
A.枸杞子
B.杏仁
C.薄荷
D.蜈蚣
E.狗肾
参考答案:A
I will work as hard as I can _____ for the final exam.
A.prepare
B.to prepare
C.preparing
D.prepared
已知二次函数f(x)满足f(-2)=-1,f(-1)=-1,且f(x)的最大值为8,解不等式:f(x)>-1。