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问题 单项选择题

肾结核较为特征的CT表现是()

A．肾脏外形改变

B．肾脏功能改变

C．钙化和肾盂壁增厚、狭窄

D．肾皮质变薄

E．肾实质内单发或多发囊状低密度区

答案

参考答案：C

选择题

— My teacher says she's canceling the class play. I just can't understand.

—  _____. You were looking forward to it. [ ]

A. It doesn't matter.                      

C. It's very unwise of her.

C. Don't worry about it.                    

D. You must be disappointed.
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单项选择题

能量均分定理是指处于温度为T的热平衡状态的经典系统，粒子能量ε中每一独立平方项的平均值等于（）

A.KT/2

B.KT

C.3KT/2

D.以上都不对
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