C/S模式下，三层架构包含的内容包括（）。A.客户机 B.文件服务_爱下问搜题

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问题多项选择题

C/S模式下，三层架构包含的内容包括（）。

A.客户机

B.文件服务器

C.应用服务器

D.数据库服务器

答案

参考答案：A, C, D

解析：在传统的Client/Server应用中，也存在着上述同样的问题，多层结构的应用正是在对C/S结构的总结基础上产生的，并且也已经扩展到了B/S应用开发领域。即将应用划分为三层（可以有更多层，但三层最常见）：用户界面层，商业逻辑层，数据库层。

完形填空

Last week, I took a sales class for female business owners. The     36   thing the instructor did was ask if anyone had been the victim of a     37   sales experience. Every person in the room    38   her hand.
When she knew details, we learned that the     39   situations had one thing in common. It     40   that whenever a class member had a bad sales experience, it involved the     41   promising something he wouldn’t or couldn’t deliver.
The example I     42  with the class was a current one. I bought a summer membership at our community pool     43   because it advertised a lovely baby pool to which I could escape with my active one and four year-olds. However, every time I’ve used the pool this summer, the baby area has been     44   . Too much chlorine（氯气）,    45   one manager.
I’m sure the pool director was very apologetic that his     46   had been inconvenienced, and that’s nice, but the     47   is that I did not get what I paid for. When the baby pool was closed, I had to swim with my     48   in the adult pool, which did not     49   me the control I wanted and as such, was quite stressful. I would have rather stayed home.
The pool has     50  a customer. I will not be buying a pass next summer.
In work and in life, it is really important not to     51   something you can’t deliver, because at best, it will improve your   52    . At worse, you could lose your job.    53   , before you assure a co-worker or customer that you can get something done, make sure that your boss or someone higher-up isn’t going to step in and force you to     54   your plan. You are not God, so don’t lead people to believe that you     55  the universe.

D．pessimistic

C．accommodate

B．relationships

单项选择题

下述物质中不引起支气管哮喘发病的炎性介质是（）

A.前列腺素

B.心钠素

C.白三烯

D.血小板活化因子

E.嗜酸性粒细胞趋化因子