为六腑,又属奇恒之腑的内脏是()
A.胆
B.胃
C.膀胱
D.三焦
E.大肠
参考答案:A
She will sing a song ____ she is asked.
A.if
B.unless
C.for
D.since
无排卵性功血的子宫内膜病理可见_______、_______或_______。