风险评估的工作之一是( )。
A.根据风险发生的概率和损失量,确定风险量
B.制定风险管理方案,采取降低风险量的措施
C.对风险进行监控并提出预警
D.确定风险因素
参考答案:A
方程x2=1的解为______;x2+2x-3=0的解为______.
His explanation was so confusing that I could hardly make any of it at all.
A.meaning
B.sense
C.idea
D.significance