（）是成功运行客户/服务器体系所带来的好处。

参考答案：The further development of economy in China has brought the more entertainment and leisure to people’s life.A case in point is the long holiday such as the National Day, in which people can spend one week or so enjoying themselves in different ways, especially going shopping and traveling.It has been agreed that the long holiday may bring much more benefit to both the customer and the businessmen.
On the other hand, however, the long holiday also brings much expectable problems to the society.First, too many visitors in the long holidays have caused the strain in traffic.Second, the visitors like to go to the well-known interesting places, which may lead to the serious damage to the nature and the scene.
In my view, people need such long holidays, and what really matters is how to guide people in their entertainment.For example, it is advisable that people try to avoid going shopping or traveling in the rush days.Anyway, the long holiday is a good idea of satisfying both the people and the merchants.

参考答案：B

参考答案：A

参考答案：The new credit cards will be of great benefit to our customers.

正确答案:B

参考答案：正确