单项选择题
A.D/P AT SIGHT ;D/P 30DAYS AFTER SIGHT ;D/A 30DAYS AFTER SIGHT
B.D/A 30DAYS AFTER SIGHT ;D/P 30DAYS AFTER SIGHT ;D/P AT SIGHT
C.D/P 30DAYS AFTER SIGHT;D/P AT SIGHT;D/A 30DAYS AFTER SIGHT
D.D/P 30DAYS AFTER SIGHT ;D/A 30DAYS AFTER SIGHT;D/P AT SIGHT