Apples are usually sold by ______weight, and eggs are sometimes sold by ______ dozen.

A．the; the

B．不填; a

C．不填; the

D．the; a

男，70岁。患“慢性支气管炎”20年余，平时经常感冒，现症见：咳嗽，痰清稀色白，神疲乏力，自汗出，舌淡苔白，脉弱。其证候是

A．风寒束肺证

B．寒邪客肺证

C．痰湿阻肺证

D．肺阴虚证

E．肺气虚证