---Can I get out at noon?

---No. The school rules state that no student _____be allowed out at lunchtime, unless he has a request form.[ ]

A. shall

B. will

C. must

D. can

绩效管理是战略管理中哪部分最重要的构成要素______

A．企业内外部环境分析

B．战略测评与监控

C．战略的制定

D．战略的实施