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问题 单项选择题

箭头所指的解剖结构是（）。

A．左锁骨下静脉

B．左锁骨下动脉

C．左颈总动脉

D．左椎动脉

E．左无名静脉

答案

参考答案：E

解析：

左无名静脉从左向右跨越无名动脉前方，与右无名静脉汇合成为上腔静脉。

单项选择题

（EMB145）推飞机时（）

A.前轮转弯角度最大107度

B.必须插转弯销

C.不脱开扭力臂前轮转弯角度可达170度
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单项选择题

Activity Based Costing (ABC) is an (11) technique that allows an organization to determine the actual (12) associated with each product and service produced by the organization without regard to the organizational structure. This chapter explains some of the uses and benefits of Activity Based Costing. We use IDEFO (13) modeling in conjunction with ABC to enable more effective business (14) design decisions.

In order to achieve the major goals of business process improvement, process simplification and improvement, FAA managers need to fully understand the cost, time, and quality of activities performed by employees or machines throughout an entire organization. ABC methods enable (15) to cost out measurements to business simplification and process improvement.

（13）是（）

A.activity

B.flowchart

C.design

D.management
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