题目内容

The total cost (TC) of producing computer software diskettes (Q) is given as: TC = 200 + 5Q. What is the average total cost?

A. 500
B. 5Q
C. 5
D. 5 + (200/Q)
E. none of the above

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The total cost (TC) of producing computer software diskettes (Q) is given as: TC = 200 + 5Q. What is the average fixed cost?

A. 500
B. 5Q
C. 5
D. 5 + (200/Q)
E. none of the above

Which always increase(s) as output increases?

A. Marginal Cost only
B. Fixed Cost only
C. Total Cost only
D. Variable Cost only
E. Total Cost and Variable Cost

Consider the following statements when answering this question; I. A firm's marginal cost curve does not depend on the level of fixed costs. II. As output increases the difference between a firm's average total cost and average variable cost curves cannot rise.

A. I is true, and II is false.
B. I is false, and II is true.
C. I and II are both true.
D. I and II are both false.

一个完整的LBS系统包含如下几个部分：位置服务平台和内容及地图服务平台、通讯网络、移动信息终端等，其中从定位设备获取定位信息，并将定位信息与其他相关信息如地理信息相结合提供一种基于位置的综合信息属于哪一个部分？

A. 位置服务平台
B. 内容及地图服务平台
C. 通讯网络
D. 移动信息终端