【单选题】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()
【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】– Here’s a box of chocolate on our desk. For me or for your mom?
A.
It’s _______, Dad. Happy Father’s Day!
【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)
【简答题】状中短语从功能角度可以分为两类,其功能分类的依据是________,根据其性质可以归入________、________两类。