The audience waited until the curtain rose and then ____ laughter at the sight of the funny actor.   [ ]

A. burst into    

B. burst out  

C. broken into    

D. began with

下列哪项不是心火亢盛主证的临床表现 ()

A．心中烦热

B．脉数

C．口渴

D．口舌糜烂疼痛

E．心前区疼痛