【单选题】某女士,26岁,产后咨询护士什么时候可以进行产后锻炼,正确的时间是
【简答题】I don’t know when he comes tomorrow . If he comes , let me know at once.
【单选题】I don’t know when he ____. But if he ____, I’ll ring you up.
【单选题】软件的质量是诸多质量属性的综合体现,质量属性包括:
【单选题】I don’t know when he _____. But when he _____ I shall let you know.
【判断题】根据观察者所处的情景可以将观察法分为参与观察和非参与观察。
【单选题】I don’t know when he _________ tomorrow. If he _________, I’ll let you know.
【判断题】根据观察者所处的情景可以将观察法分为参与观察和非参与观察。
【单选题】He is said _______ a new machine recently, but I don’t know when he will make it.
D.
to have been designing