听力原文:W: It is said that there are some check authorization systems currently in use.M:
听力原文:W: It is said that there are some check authorization systems currently in use.
M: But they are cumbersome relative to the computerized credit card validation systems.
Q: What does the man think of the check authorization systems?
(20)
A.They are convenient.
B.They are advanced in technology.
C.They are cumbersome.
D.They are computerized.