等腰三角形两边长分别为4,8,则它的周长为[ ]
A.20
B.16
C.20或16
D.不能确定
答案:A
— Do you think there are new words in this unit?
— Yes, that's right. I'll first. [ ]
A. too much, look them up
B. too many, look up them
C. much too, look them up
D. too many, look them up