—When did your father stop smoking?
—In 1999, the year I was born.
A:put up
B:think up
C:mix up
D:give up
如图曲线表示人体血液经不同血管(H.I.J)时氧或二氧化碳浓度的变化,其中H为主动脉,则图中曲线和血管I分别表示( )