下列公差关系式中正确的是()
A.公差=|基本尺寸-下偏差|
B.公差=|最大极限尺寸-基本尺寸|
C.公差=|上偏差-下偏差|
D.公差=|上偏差+下偏差|
参考答案:C
偶然误差具有的特性是()。
A.按照一定的规律变化
B.保持常数
C.绝对值相等的正误差与负误差出现的可能性相等
D.具有累计性
What is the nurse's most important role in caring for a client with a mental health disorder
A.To offer advice.
B.To know how to solve the client's problems.
C.To establish trust and rapport.
D.To set limits with the client.