【判断题】税法是税收的法律依据和法律保障,而税法又必须以保障税收活动的有序进行为其存在的理由和根据。
【简答题】双圆销外啮合槽轮机构,槽轮有 6 条径向槽,若已知带圆销的曲柄转速为 2r / min ,曲柄转一周,则槽轮的运动时间为 ▲ 秒; 带圆销的拨盘回转 ▲ 周,槽轮回转1周。
【单选题】( ) 曾纵囚归狱,演绎了一段诚信的佳话
【多选题】wrong understanding : person, not a driver, traveling in a public or private vehicle: without delay, at once , adv like or alike, of same kind . adj movement of people or vehicle along roads and stree...
【简答题】{ 双圆销外啮合槽轮机构,槽轮有6条径向槽,曲柄转一周,槽轮的停歇时间为1/4s, 则曲柄的周期为____s,转速为____r/min。该机构有____个运动副。 }
【简答题】双圆销外啮合槽轮机构,槽轮有6条径向槽,槽轮转过1转,曲柄应转过 转。
【简答题】g________:adv. in a way that is very easily seen