【简答题】—Is it behind the door? —______ [ ] A Yes, it is B Yes, the door is C no, it is
【单选题】()是一种用来组配具有交叉关系概念的技术。
【判断题】柴油机在进气行程时,吸入的是纯空气,在压缩行程中的也是纯空气
【判断题】If the door is open, the visitor still needs to knock at the door.
【简答题】A. The door is not worth fixing. B. The door can't be fixed in time. C. There is no replacement for the handle. D. There is no match for the door.
【判断题】东汉时期,全国最大的商业都市是长安。( )
【简答题】The door is three feet wide. The ______ of the door is three feet.