可使药物的亲脂性增加的基团是（）
A．氨基
B．羟基
C．羧基
D．烃基
E．磺酸基
参考答案：D
售票、退票要唱收唱付，做到（）、日期、车次、席别、到站准确，收、找、（）、正确。
Different type of capital markets have different functions. Which of the following describes the most direct function of: primary capital markets secondary capital markets（）
A. Source of liquidity Security underwriting
B. Source of new capital Source of liquidity
C. Source of new capital Security underwriting
