A. 现金 B. 转账 C. 旅游 D. 职工报酬和赡家款
A. 纵向延伸 B. 横向收缩 C. 压向延伸 D. 切向收缩
A. Were there loss of energy by friction B. Since there be loss of energy by friction C. Were there no loss of energy by friction D. Should be no loss of energy by frictio
A. 影响运输生产 B. 造成人员伤亡 C. 造成设备损害 D. 引起煤尘、瓦斯爆炸