在任何情况下,铁及其合金都是体心立方晶格。
参考答案:错
— But for your timely warning, we ____ into great trouble.
— You know we're friends. [ ]
A. would get
B. must have got
C. would have got
D. couldn't have got
风险管理中最为重要的环节是:()
A.风险识别
B.风险评价
C.风险估测
D.选择风险管理技术