—How often do I need to feed the birds?

—They ________ food every day，or they will be hungry.

A．must give

B．mustn’t give

C．must be given

D．mustn’t be given

鼻涕黏白，量或多或少，经常性鼻塞，早晚加重，嗅觉减退。伴面色不华，倦怠乏力。检查见鼻黏膜暗淡，鼻甲肿胀，双侧中鼻道有脓性分泌物。舌质淡胖，苔白，脉缓弱。辨证属（）

A.肺虚邪滞鼻窍证

B.脾虚邪滞鼻窍证

C.气虚邪滞鼻窍证

D.阳虚寒凝鼻窍证

E.郁热熏蒸鼻窍证