When I met him the other day，it was the first time we________each other since we were at school.

A．saw

B．have seen

C．had seen

D．were seeing

患者女，纺织女工，35岁。在某纺织厂从事纺纱和织布工作已10年以上。近来主诉耳鸣、听力下降等症状，到医院就诊。 在询问病史时应考虑接触何种有害因素（）。

A.振动

B.噪声

C.化学染料

D.微波

E.射频辐射