－Oh, my God! I can't find my key to the office.

－Don't worry. Perhaps it _________ at your home.

A．left

B．has left

C．was left

D．had left

下列关于曲泉穴的功能特点叙述正确的是（）。

A、清热调肺，疏经通络、降逆利水

B、散寒除湿、舒筋活络

C、滋肝补肾，宁心熄风

D、疏肝利胆、宁心熄风、通经活络