According to a new study by a British’s university , learning ______ second language can lead to ________ increase in your brain power.  

A．a ; the

B．不填；the

C．a ；an

D．the ；an

患者男青年，素体壮实，3天来出现腹痛胀满，按之痛甚，自述烦热口渴，大便秘结，舌质红、苔黄厚，脉滑实有力。中医辨证为

A．实热证

B．虚寒证

C．食滞证

D．气滞证

E．寒实证