“塞因塞用”不适用于治疗（）。

A.脾虚腹胀

B.血虚便秘

C.血枯经闭

D.肾虚尿闭

E.血瘀经闭

Two short blasts of the whistle have all of the following meanings except（）.

A.I intend to meet you starboard to starboard

B.I do not intend to hold course and speed

C.I intend to overtake you on your port side

D.I intend to alter my course to port