【单选题】现代轿车发动机火花塞电极间隙X值一般为( )mm
【单选题】Sensible peopl don’t think it is_______ to buy things which are not needed even at a low price.
【单选题】There is ______ on the playground. [ ]
【单选题】The list on which 'Nescafe instant coffee' was given to a group including ______.
【判断题】平面型密封面的法兰与凹凸型密封面的法兰相比,前者适用于压力比较高的场合。
【单选题】以下描述正确的是下列选项的哪项?()
E.
氟牙症指数是Dean分类法中确定个体损害程度的指数
【单选题】Which of the following is true of the IKEA effect?
A.
It refers to the phenomenon that people usually undervalue their creations.
B.
It is put forward by the honorable and successful manufacturer IKEA.
C.
It explains why the participants think highly of their own origami.
D.
It accounts for the popularity of do-it-yourself among youngsters.