某人患肺炎进行药物治疗,如果在手背上进行静脉点滴青霉素,药物到达肺部所经历的途径是( )
A:上腔静脉→左心房→左心室→肺静脉→肺
B:上腔静脉→右心房→右心室→肺动脉→肺
C:下腔静脉→右心房→右心室→肺静脉→肺
D:下腔静脉→左心房→左心室→肺动脉→肺
A.平移 B.旋转 C.轴对称 D.都不是
下列说法中,正确的是( )
——The little girl often has nothing for breakfast, ________she?——_______. Because she often gets up late and is afraid of being late for school.
“宽容与刻薄相比,我选择宽容。因为宽容失去的只是过去,刻薄失去的却是将来。”汪国真这一诗句蕴含的道理是( )