---Your school things are here and there. Will you please          ?

---OK, I’ll do it right away.

A．give them away

B．fix them up

C．hand them out

D．put them away

打开浓盐酸的试剂瓶，发现瓶口上方出现_______________，用手轻轻扇动时还会闻到刺激性气味，这是因为盐酸具有_______________性。