某患者有过不洁性交史，1个月后外生殖器出现丘疹状硬结而就诊。检查发现其硬结呈圆形，基底清晰，边缘隆起，质硬，有无痛性溃疡。初步怀疑是梅毒螺旋体感染：(1)如果我们取该患者硬结的分泌物，应该采取哪种检查方法?(2)如果标本染色后镜检，最好选择下列哪种染色法?

— Could you tell us ____?   —For about two weeks.

A．how soon you will be back

B．how long you will be there

C．how soon are you going to be back

D．how long are you going to be away