对于病房护士长来说最有效的监督方法是 ( ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
直接观察 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
听取汇报 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
指派专人监督 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
护士相互监督 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>