垫交还款时必须一次交齐所有()
A.保险费
B.利息
C.保险费及利息
参考答案:C
In some foreign countries, such as Canada, children usually leave
their parents when they grow up. It makes the old feel ______. [ ]
A. alone
B. lonely
C. frightened
D. enjoyable
增加化合物的亲脂性()
A.不能改善药物的体内吸收
B.不利于通过血脑屏障
C.不增强作用于中枢神经的药物活性
D.不能使药物在体内容易分解
E.不能使药物易于穿透生物膜