下面属于电光源的主要技术指标有()。
A.发光效率
B.色温
C.寿命
D.显色性
参考答案:A, B, D
颈外静脉穿刺适用于()。
A.病情危重儿
B.昏迷小儿
C.3岁以内小儿
D.有出血倾向小儿
E.有严重心肺疾患的小儿
Project (69) Management includes the processes required to ensure that the project includes all the work required, and only the work required,to complete the project successfully.
A.Integration
B.Scope
C.Configuration
D.Requirement