从涂料的角度看,()聚合物作为成膜物是不合适的。
A、具有明显结晶作用的
B、非晶态
C、分子量太高的
D、分子量分布太宽的
参考答案:A, C, D
简述全草类中药的概念及鉴别要点。
Project()Management includes the processes required to ensure that theproj ect includes all the work required, and only the work required, to complete the project successfully.
A.Integration
B.Scope
C.Configuration
D.Requirement