鱼类的循环系统绝大多数是闭锁式的单循环。
参考答案:对
关于哺乳期用药,下列哪个是错误的()
A.大多数药物都可以从乳汁中分泌
B.华法林在乳汁中浓度较高
C.弱碱性药物容易从乳汁排出
D.分子量小的容易经乳汁排出
E.蛋白结合率高者不容易从乳汁中排出
—Would you mind if I turned on the radio and listened to some music?
—______. In fact, I also like to listen to music in my car.
A.No, you can’t
B.Yes, I do
C.No, go ahead
D.OK, no problem