【单选题】按照基准先行原则安排机械加工工艺顺序,下列工件的加工选择正确的是( )。
【单选题】进度管理计划是一份关键文件。它是______。
【单选题】I was _________ tired _________ I fell asleep as soon as I lay down.
【单选题】进度管理计划是一份关键文件,它是( ) 。
【单选题】— What's the matter with your leg? — I ______ yesterday. [ ]
【简答题】Some weak bridge may not ___ in an earthquake. A,stay up B. fall down C. fell down D. fell off
【简答题】A. The tree was broken. B. All the leaves fell down. C. One of the branches fell down. D. The tree was cut down.
【单选题】______ from the apple tree.
【简答题】________ from the apple tree [A] It down fell [B] there it is needed [C] Down fell it [D] Fell it down