She is optimistic about everything, but she ______ be very frustrated as well. [ ]

A. could

B. will

C. should

D. can

创业生存阶段在财务方面常见问题之一是（）。

A.实行销售折扣和赊销政策使企业销售收入减少

B.企业投入产出不平衡，收不抵支，发生亏损

C.未建立岗位责任制度，有制度也流于形式

D.企业产品销售渠道不畅通，销路不佳