(1)①处应填
A. return B. continue C. break D. tile++
(2)②处应填
A.dr <tr-s&&dc<tc+s B.dr < tr+s&&dc < tc-s
C.dr<tr+s&&dc<tc+s D.dr < tr-s&&dc < tc-s
(3)③处应填
A. chessboard(tr,tc,tr-s-1,tc+s-l,s) B. chessboard(tr,tc,tr+s+l,tc+s-l,s)
C. chessboard(tr,tc,tr+s-l,tc+s-l,s) D. chessboard(tr,tc,tr-s-l,tc-s-l,s)
(4)④处应填
A. chessboard(tr,tc+s+l,tr+s-l,tc+s,s) B. chessboard(tr,tc+s,tr+s-l,tc+s,s)
C. chessboard(tr,tc+s,tr+s-l,tc+s+l,s) D. chessboard(tr,tc,tr-s+l,tc-s-l,s)
(5)⑤处应填
A. chessboard(tr+s,tc,tr+s,tc+s-l,s)B. chessboard(tr+s,tc,tr+s+l,tc+s,s)
C. chessboard(tr,tc+s,tr+s-l,tc+s+l,s)D. chessboard(tr+s,tc,tr+s,tc+s,s)
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2