W: I want to make meat soup for lunch, but I’m not sure what ingredients are needed.

M: Here is a recipe your mother gave.

What is the woman going to do next （）

A. Ask her mother.

B. Buy the ingredients.

C. Read the recipe.

D. Cook the soup.

通过危险物质及其临界值标准，可以确定哪些是可能发生事故的( )。

A．重大危险源

B．外漏的危险源

C．多发性危险源

D．潜在危险源