结合胆红素进入胆道后还原为尿胆原,在肠内被吸收入肝的比例是
A.1%~5%
B.5%~10%
C.10%~20%
D.20%~25%
E.25%~30%
参考答案:C
逆行性牙髓炎往往伴随有()
A.严重的牙龈炎
B.严重的牙周病
C.严重的牙体缺损
D.较深的楔状缺损
E.明显的牙齿松动、移位
( )party shall notify the other party of the ratification by their respective authorities.
A.Each
B.One
C.Either
D.A