l

（A）1条                           （B）2条                    （C）3条                    （D）4条

（A）13                             （B）2                        （C）                     （D）

（A）                          （B）                      （C）                      （D）

cosB=

(A)                        (B)                 (C)                 (D)

(A)                                      (B)          

(C) y=3x-3                                                 (D) y=3x+1

(A)(-1,2)                       (B)(-1,1)               (C)(-2,1)               (D)(-2,2)

(A)tanx                          (B)sinx                  (C)cosx                 (D)cotx

(A)(7,3)                        (B)(7,7)                 (C)(1,7)                (D)(1,3)

(A)y=                                (B)

(C) y=                    (D)

(A)｛2,3｝                    (B){1,4,5}                    (C){4,5}               (D){1,5}