That's why _____________ a surprise. [ ]
A. is it
B. it is
C. its
答案:B
绝经后妇女,雌二醇的主要来源是()
A.雄激素在性腺外的转化
B.肾上腺皮质束状带
C.肾上腺皮质球状带
D.乳腺
E.子宫
《素问·咳论》所述"咳而腹满,不欲食饮"见于()
A.胃咳
B.脾咳
C.肺咳
D.三焦咳
E.肝咳