S a b c d
A + B → C + D △S
A woman B women C woman"s D women;s
#include main() { double a,b,c,s,v; scanf("%d,%d,%d",&a,&b,&
在数学中S',C' C'B' B'D' D'A'中‘“ ’
[What] colour [is] [Danny's] [shorts]?A B C D
E #F #S A B #C #D E是什么调?
----his sister. A.He's B.this's C.that's D.who's
[a,b)×[c,d
a,b ,c ,d
-----------wearing a raincoat?A.who's B.Where's C.what's D.W
what's this?A.It's here B.It's the letter S C .its S D.It's
___kate .she's english.a、 it's b 、it c 、its d 、he's