设备巡视应注意哪些事项?
Vessels required to be equipped with an approved backfire flame arrester are(). ["those with diesel engines","all those with gasoline engines","those with large engines only","None of the above"]
()俗称“公稻子”。
下列选项中关于税收与国债区别,说法错误的是()。 ["税收无须偿还,而国债必须偿还","税收属于财政收入,而国债不属于财政收入","税收具有强制性,而国债是自愿的信用关系","税收对象和税率事先规定,而国债利率受诸多因素的影响"]
对进程的说法正确的是()。 ["是一个系统软件","与程序概念等效","是存放在内存中的程序","是执行中的程序"]
机械割晒采取横插竖割,割茬()厘米。