At the airport I recognized her easily because her red hair _______ in the crowd.[ ]

A. stood up

B. stood out

C. stood for

D. stood by

仓库一般采用经验鉴别法，只做（）。

（A）外观检验和机械物理性能检验

（B）外观检验和尺寸检验

（C）尺寸检验和化学成分检验

（D）机械物理性能检验和化学成分检验