【单选题】当水蒸气蒸馏结束时有以下操作:1关闭冷却水;2取下接收瓶;3打开T形管下止水夹;4移去热源;5反向拆除装置。操作次序正确的是
【简答题】We should ____________ joys and sorrows ______________( 与 .... 分享 ) our friends.
【单选题】共析钢加热到奥氏体状态,冷却后获得的组织取决于钢的( )。
【简答题】We should ____ joys and sorrows ____ our friends. (share... with.../ share... for...)
【单选题】We should ___joys and sorrows with our friends.
【简答题】共析钢加热到奥氏体状态,冷却后获得的组织取决于钢的 。
【简答题】People should be encouraged to share their joys and sorrows at the diner table____________(不管他们有多么忙). In fact, diner time is a perfect period for communication.
【单选题】在行政事业单位会计中,行政单位的具体例子如( )。
【单选题】下列选项中,哪一种传播媒介是以静态的形象为主要信息载体的传播媒介?