—般来讲，影响股票投资价值的内部因素主要包括公司净资产、盈利水平、财政政策、股份分割

You are the project manager in an automobile manufacturing company．Because of heavy rains，the machine parts required in your manufacturing process which a vendor was sending to you，could not reach you in time．You had anticipated this risk and planned for it in your risk response plan．So，as part of your risk response plan，you started using machine parts which had been supplied 1 year ago and were not utilized at that time．However，this has subjected your project to a new risk-that the machine parts which were not used for 1 year might be a having higher level of defects．This new risk can also be called______．

A．unidentifiable risk

B．unmanageable risk

C．secondary risk

D．residual risk

比一比，再组词。

醉(        ) 锄(         ) 遮(        ) 漠(        )

碎(        ) 助(         ) 蔗(        ) 寞(        )

婚姻家庭咨询师发现（）是一个完美的工具。

A.控制理论

B.系统理论

C.发展理论

D.进化理论

通过对氟利昂12（R12）和氨（R717）制冷剂在冷凝温度t_k＝30℃，蒸发温度t₀＝-15℃时进行循环的理论制冷系数，以及在上述t_k、t₀温度条件下，采用回热循环（压缩机吸气温度t₁＝5℃）的理论制冷系数计算，可以知道（）。

A．R12采用回热循环制冷系数提高

B．R717采用回热循环制冷系数提高

C．R12采用回热循环制冷系数下降

D．R717采用回热循环制冷系数不变

尿路造影中，输尿管结核的典型表现有（）

A.输尿管扩张

B.管壁增厚，蠕动消失

C.输尿管狭窄与扩张交替出现串珠状改变

D.输尿管扭曲，类似软木塞钻样改变

E.输尿管管壁硬化、缩短，管腔狭窄，形似笔杆