搜题请搜索小程序“爱下问搜题”
问题 单项选择题

在《节水型社会建设“十一五”规划》非常规水利用的重点任务中，新增海水直接利用量200亿m3以上，总量达到（）亿m3。

A.500

B.550

C.520

D.600

答案

参考答案：B

单项选择题 A1/A2型题

关于骨盆摄影错误的叙述是（）

A.常用于外伤及骨质破坏的检查

B.应完全包括骨盆诸骨

C.双下肢伸直并内旋，两趾并拢，足跟分开

D.中心线应向足侧倾斜20°角

E.成人摄片都需要使用滤线器
查看答案
单项选择题

The presentation layer is concerned with the （）and semantics of the information exchanged between two systems. The processes in two systems are usually exchanging information in the form of character （）, numbers, and so on. The information should be changed to bit （） before being transmitted. Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods. The presentation layer at the sender changes the information from its sender-dependent format into a common format. The presentation layer at the receiving machine changes the common format into its （） -dependent format.

Because different computers use different encoding systems, the presentation layer is responsible for （） between these different encoding methods.

A．capability

B．interoperability

C．reliability

D．dependability
查看答案