虚证的概念是

A．正气不足为主要矛盾主要方面的病理变化

B．正气不足，邪气亢盛的病理变化

C．邪气亢盛，正气已衰的病理变化

D．正虚邪恋的病理变化

E．以上均非

This is _____ room, and it is beautiful and lovely.    [ ]

A. Betty and Sara

B. Betty's and Sara's

C. Betty and Sara's

D. Betty's and Sara