Which three statements are correct about RIP version 2? (Choose three.)（） ["It has the same maximum hop count as version 1.","It uses broadcasts for its routing updates.","It is a classless routing protocol.","It has a lower default administrative distance than RIP version 1.","It supports authentication.","It does not send the subnet mask in updates."]
卖方管理库存的概念和实施的步骤
习近平指出，我们的责任，就是同全党同志一道，坚持党要管党、从严治党，切实解决自身存在的突出问题，切实改进工作作风，密切联系群众，使我们的党始终成为（）。 ["受人民拥护的执政党","代表最广大人民根本利益的政党","带领人民实现中国梦的伟大政党","中国特色社会主义事业的坚强领导核心"]
为什么双十字轴式万向节传动装置装配时要按对准标记装配？
下列（）属于用电器。 ["各种电子控制器件","霍尔传感器","热线式空气流量传感器","磁脉冲式发动机转速传感器"]
简述主减速器功能。
