A:20%
B:25%
C:6%
D:80%
3乘5,再加2得18.
已知 x , y 为实数,且 x-1+3y-22=0 ,则 x-y 的值为?
This book is______ that one, but______ than that one.
C____ drove Mary to open her husband's letter though she knew it was wrong.