【判断题】There are many box here.()
【简答题】看图片填空。 1. It's _________ the box. 2. It's _________ the box. 3. It's _________ the box. 4. It's _________ the box. 5. It's _________ _________ the chair. 6. It's _________ the bed _________ the bookca...
【单选题】A: Hello. Here is your pencil-box. B: _____ very much. A: _____. [ ]
C.
Thank you; You're welcome
【单选题】空间两直线垂直相交,如果其中一条直线平行于某一投影面,则两直线在该投影面上的投影互相 。
【判断题】如果相交两直线在某一投影面上的投影互相垂直,且其中有一条直线为该投影面的平行线,则这两条直线在空间也必定互相垂直。
【单选题】听力原文:How long has this box been sitting here? (A) It's addressed to you. (B) In the supply room. (C) All morning. (6)
【单选题】This is Kate's box and _____is here.
【单选题】—Hello. Here’s your pencil-box. —________very much. —________. [ ]
C.
Thank you; You’re welcome
【简答题】如果两直线在某一投影面上的投影互相垂直, 而且其中有一条直线平行于该投影面,则两直线在空间位置的关系是() A.垂直 B .平行 C .相交 D .不能确定