A.內(nèi)生性為主 B.涵蓋全部業(yè)務(wù) C.難以度量 D.發(fā)生概率大
A.0.1 B.0.2 C.0.3 D.0.4
A.2.53% B.2.76% C.2.98% D.3.78%