Only when his mother arrived ___________.

A．the boy stopped crying

B．stopped the boy crying

C．the boy did stop crying

D．did the boy stop crying

风险评估涉及的风险种类中，（）是非现场监管人员每一次风险评估中都应考虑的内容。

A.操作风险

B.信用风险

C.市场风险

D.流动性风险