Though they are______little children , they have worked out _______many difficult math problems.

A．so; so

B．such; such

C．so; such

D．such; so

关于微囊特点叙述错误的是( )

A．加快药物的释放
B．提高药物的稳定性
C．掩盖药物的不良气味
D．减少复方配伍禁忌
E．降低药物在胃肠道中的副作用