limx→-2x+2x2-4=limx→-2x+2(x+2)(x-2)=limx→-21x-2=-14.
答案:-14.
—_________ was she born?
—In Beijing. [ ]
A. Where
B. Which place
C. Which city
苏木的红色成分是
A.巴西苏木素B.巴西苏木色素C.色原烷类D.黄酮类E.挥发油