【判断题】第一枚婚戒诞生于1477年,奥地利王麦士米尼给法国勃艮地玛丽公主,套在无名指上。
【单选题】A recent study shows that health problems are closely_______bad eating habits and a lack of physical exercise.
【单选题】Before starting a diesel engine that has an engine driven lube oil pump, the engineer should _____.
B.
cut in the lube oil cooler
C.
pressurize the lube oil system
D.
top off the expansion tank
【单选题】In recent fashion shows, silk and jeans seem to be a perfect in the hand of those famous designers. [ ]
【单选题】The cooling water of the diesel engine should be treated, because it has ____.
【简答题】在开发计算机辅助课件时采用的主要理论是( ) a. 试误说 b. 程序教学法 c. 认知-发现理论 d. 建构主义
【单选题】Turbocharging of marine diesel engine is achieved by two distinct methods, _____ termed the constant pressure and the pulse system.
【单选题】The recent finding shows that once _____ computer games, one will find it difficult to give it up. [ ]