During project execution, a new ISO version of standard 9000 is issued. The project team meets with the quality department to determine how the standard will apply to the project. Which part of the quality process is this

A) Quality analysis.
B) Quality assurance.
C) Quality control.
D) Quality planning.

下列关于O₂的说法不科学的是[ ]

A．常用带火星的木条来检验空气中的O₂

B．硫在O₂里燃烧产生明亮的蓝紫色火焰

C．工业上将空气液化后再进行分离来制取O₂

D．加热KClO₃制O₂，可用MnO₂作催化剂