【简答题】Name the primary parts of a CAD system.
【判断题】Generally speaking, a CAD system is an analytic tool for design.
【单选题】Complete the sentence.Tā shuō Zhōngwén shuō dé hěn màn ,wǒmen dōu néng tīng _____。他说中文说得很慢,我们都能听_____。
【单选题】The CAD system supports the design process mainly at _______ levels.
【单选题】The main concept of CAD/CAM system is the __________ of a common data base.
【判断题】Generally speaking, a CAD system is an analytic tool for design.
【判断题】CASS 的英文全称是 CAD AID SURVEY SYSTEM。()
【判断题】自然循环的自补偿能力对水循环的安全有利,这也是自然循环的一大优点。