The primary advantages of a Client/Server system arise from splitting the processing between the client system and the database server. Since the bulk of the database processing is done on the back-end, the speed of the DBMS isn’t tied to the speed of the (31) .

The major disadvantage of Client/Server system is the increased cost of (32) and support personnel who maintain the database server. There is also the issue of (33) with so many parts comprising the entire C/S system; Murphy’s Law can kick in-the more pieces that compose the system, the more pieces that can fail. It’s also harder to track down problems when the system (34) . And it can initially take longer to get all the components set up and working together. All this is compounded by the general lack of experience and expertise of potential support personnel and programmers, due to the relative newness of the technology. As C/S system become more common, this problem should abate.

Therefore the C/S system is more (35) .

（35）是（）

A. efficient and easy to setup

B. efficient and robust

C. efficient but difficult to maintain

D. robust but difficult to setup

关于铁人三项的描述，正确的是？（）

A.历史并不长，是20世纪80年代末开始兴起的一项运动

B.比赛按游泳自行车和马拉松的顺序进行

C.对身体条件要求很高，参赛者必须有医生的证明才能确认比赛资格

D.不同的比赛有不同的距离，奥运会比赛的标准和世锦赛相同

E.2000年列为奥运会正式比赛