心输出量是指
A. 指每一分钟一侧心室射出的血量,简称心输出量
B. 指每一分钟心室射出的血量,简称心输出量
C. 指每一分钟一侧心房射出的血量,简称心输出量
D. 指每一分钟心房射出的血量,简称心输出量
Children should _______ themselves from unhealthy movies or games.
A. distance
B. trip
C. journey
D. holiday
David's decision ran _____ to his parents' expectations.
A. encounter
B. counter
C. countering
D. countered