中软数调设备应急分机的使用是必须拔掉值班台的2B+D插头，起机后，所拨号码为（）所对

下面说机件的说法中错误的是（）

A．机件的真实大小应以图样上所注的尺寸数值为依据

B．机件的真实大小与图形的大小无关

C．机件的真实大小与绘图的准确度无关

D．机件的真实大小应按照图样上所注的尺寸数值和图样的比例经换算确定

医生检查患者腹部，用示指和中指的指腹贴于剑突下部的肝脏表面的方法，来区别肝脏的搏动是由于右心室肥厚还是腹主动脉搏动的传导所致。下列哪一项描述正确（）

A.搏动在深呼气时明显为右心室肥厚

B.搏动在深吸气时明显为右心室肥厚

C.搏动在呼气和吸气均明显为右心室肥厚

D.搏动在深压时明显为主动脉搏动

E.搏动在浅表触诊时明显为右心室肥厚

与时间管理相关的流程管理包括（）

A、搜集数据

B、寻找问题

C、探寻原因

D、改正起因

In the following essay, each blank has four choices. Choose the best answer and writedown on the answer sheet.

Microwave communication uses high-frequency (26) waves that travel in straightlines through the air. Because the waves cannot (27) with the curvature of the earth, they can be (28) only over short distance. Thus, microwave is a good (29) for sendingdata between buildings in a city or on a large college campus. For longer distances, the wavesmust be relayed by means of "dishes" or (30) . These can be installed on towers, highbuildings, and mountain tops.

（29）是（）

A.material

B.equipment

C.medium

D.channel

GIS的基础理论包括哪些相关学科？它们有什么相互关系？