—Why is Peter working so hard these days?.

—The _______ of failing the exam next week makes him do so.

A．announcement

B．threat

C．competence

D．dilemma

衡量企业（业绩）成功与否的标准只有一个（）

A.营业收入

B.利润

C.在本国市场的美元价值

D.国际市场占有率