-- Two bottles of apple juice, please.

-- Only one bottle is left. Would you like to have ___________, sir?

A．one

B．it

C．any

D．something

采用三角形加热法矫正梁柱类构件的弯曲变形时，为提高矫正效果，三角形加热的顶点应超过弯曲中性层。( )