油隙绝缘中,电极表面加覆盖层能提高击穿电压的原因是( )。
A. 改善电场分布
B. 限制泄漏电流
C. 阻隔离子运动
D. 防止形成小桥
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影响变压器油中杂质小桥的形成的因素有( )。
A. 电极形状
B. 电压类型
C. 油的品质
D. 屏障
All of the following principles should be considered to make informed consent, EXCEPT .( )
A. medicine
B. education
C. law
D. ethics
Which of the following statements best describes the decision-making process of the elders with compromised decisional capability? ( )
A guardian is needed for the process.
B. A surrogate decision-maker should help to make decisions.
C. Decisions with minimal risks can be made at any time.
D. The elders should be asked to paraphrase the discussion.
What seems to be the obstacle preventing patients from make decisions for themselves? ( )
A. Patients would feel intimidated or overwhelmed facing complex medical issues.
B. Patients need to sign a form granting permission to perform the treatment.
C. Patients cannot understand the health care provider clearly.
D. Patients must make knowledgeable, voluntary and authentic decisions.
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