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问题 选择题

蛋白质能与双缩脲试剂发生作用产生紫色反应的原因是蛋白质中有肽键，而肽键可以与双缩脲试剂发生反应产生紫色的络合物。下列化合物中可以与双缩脲试剂发生紫色反应的是[ ]

A．

B．

C．

D．CH3―CH2OH

答案

A

单项选择题

A woman seeking help at a community mental health center complains of fatigue, sensitivity to criticism, decreased libido, and feeling self-conscious. She also has aches and pains. Which of the following might be a nursing diagnosis for this client

A．Delayed growth and development.

B．Ineffective role performance.

C．Posttrauma syndrome.

D．Chronic low self-esteem.
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判断题

列入强制性产品认证目录的进口玩具，需在产品上加施“COC”标志，并在报检时提供强制性产品认证证书复印件。( )
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