蘑菇是一种大型真菌，很多种类可以食用．下列生存条件不是蘑菇生存所必须的是（　　）

A．营养物质

B．水

C．适宜的温度

D．阳光

Which of the following BEST describes the verify scope process ？（）

A．It provides assurances that the deliverable meets the specifications，is an input to the project management plan，and is an output of perform quality contro

B．It ensures that the deliverable is completed on time and gets customer acceptance，and shows that the deliverable meets specification

C．It ensures customer acceptance，shows that the deliverable meets specifications，and provides a chance for differences of opinion to come to ligh

D．It is an output of perform quality control，occurs befordefine scope，and ensures customer acceptanc