是风险分析的基础。
A.风险识别
B.风险分类排队
C.风险事件发生的概率和概率分布
D.风险计划的制订
参考答案:C
The agent was about to sign his name to the document_______ , to our surprise, a stranger broke in to prevent him.
A.while
B.when
C.as
D.until
在药物归经上,紫苏归()。
A.肺经
B.心经
C.肺脾经
D.肺心经