一列火车通过隧道,从车头进入道口到车尾离开隧道共需45 秒,当整列火车在隧道里时需32 秒,若车身长为180 米,隧道x 米,可列方程为_____。
Most of us manage our physical health better than our emotional health, ______ problems to cause real harm.
A.left
B.leaving
C.to leave
D.having left
其他棉制针织或钩编非起绒毛衫