梁中配有计算需要的纵向受压钢筋时，箍筋（）.

A.根据钢筋布置而定

B.可以任意布置

C.封闭式

D.开环式

She knew she had to       calm and still until the enemy went away from her hiding cave. 

A．become

B．feel

C．keep

D．turn