问题
选择题
On________，one out of ten smokers may suffer from cancer.[ ]
A. normal
B. average
C. usual
D. common
答案
答案：B
搜题请搜索小程序“爱下问搜题”
On________，one out of ten smokers may suffer from cancer.[ ]
A. normal
B. average
C. usual
D. common
答案：B