14. 如下表所示,小聪家在A点,用(3,1)表示,小明家在B点,用(8,5)表示.若用(3,1)—(4,1)—(5,1)—(5,2)—(5,3)—(5,4)—(6,4)—(7,4)表示由A到B的一种走法,并规定从A到B只能向下或向右走.那么下面走法符合题意的有( )
(1,1) | (2,1) | A(3,1) | (4,1) | (5,1) | (6,1) | (7,1) | (8,1) |
(1,2) | (2,2) | (3,2) | (4,2) | (5,2) | (6,2) | (7,2) | (8,2) |
(1,3) | (2,3) | (3,3) | (4,3) | (5,3) | (6,3) | (7,3) | (8,3) |
(1,4) | (2,4) | (3,4) | (4, 4) | (5,4) | (6,4) | B(7,4) | (8,4) |
(1,5) | (2,5) | (3,5) | (4,5) | (5,5) | (6,5) | (7,5) | (8,5) |
(1,6) | (2,6) | (3,6) | (4,6) | (5,6) | (6,6) | (7,6) | (8,6) |
A . (3,1)—(4,1)—(4,2)—(5,2)—(6,2)—(7,2)—(7,3)—(8,3) B . (3,1)—(4,1)—(5,1)—(6,1)—(7,1)—(7,2)—(7,3)—(7,4) C . (3,1)—(4,1)—(5,1)—(6,1)—(7,1)—(8,1)—(8,2)—(8,3)—(8,4)—(7,4) D . (3,1)—(4,1)—(5,1)—(6,1)—(6,2)—(6,3)—(6,4)—(6,5)—(7,5)—(7,4)