A、 Their business hours are limited.
B、 Their safety measures are inadequate.
C、 Their banking procedures are complicated.
D、 They don't have enough service windows.

【正确答案】 A

【答案解析】解析：根据“他们对银行有限的营业时间不满意”，故选A。

A、 People who are in the habit of switching from one bank to another.
B、 Young people who are fond of modern technology.
C、 Young people who are wealthy and well-educated.
D、 People who have computers at home.

【正确答案】 C

【答案解析】解析：根据“网上银行的方便吸引了银行最想留住的那类客户，即那些受过良好教育、高收入的年轻人”，故选C。

A、 To compete for customers.
B、 To reduce the size of their staff.
C、 To provide services for distant clients.
D、 To expand their operations at a lower cost.

【正确答案】 A

【答案解析】解析：根据“一个原因是银行必须竞相争夺客户……”，故选A。