临床上常用的吸入性麻醉药是( )。
A．丙泊酚
B．异氟醚
C．水合氯醛
D．硫喷妥钠
E．普鲁卡因
参考答案：B
Requirements management is the process of(1),analyzing,tracing,prioritizing and agreeing on requirements and then controlling changes and communicatingto relevant stakeholders.It is a(2) process throughout a project.A requirement is a capability to which a project outcome (product or service) should conform.
空白（1）为（）
A.commu nicating
B.collecting
C.filing
D.documenting
