28 students are badminton club members only.
+ a, W, X+ q @* ftvb now,tvbnow,bttvb! }; M' e) E! Z0 T6 s* F- `
2 students are in computer club only.
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12 students are in both badminton and computer club.8 e; e; f/ z; I. w8 Z
h/ l8 J6 |9 N" l/ {+ W; F5.39.217.77:8898therefore 28+2+12+6=48 |
發表於 2007-9-12 01:49 PM
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