【单选题】Glass ionomer cements are composed of( )
A.
zinc oxide powder and polycarboxylic
B.
zinc oxide powder and phosphoric acid liquid
C.
aluminosilicate powder and phosphoric acid liquid
D.
aluminosilicate powder and polycarboxylic liquid
【单选题】In mixing zinc phosphate cement,which clinical variable has the greatest effect on the strength of the cement( )
C.
temperature ofthe mixing slab
D.
number and size ofpowder increments
【单选题】My father has worked there ___________.
【单选题】在Video对象中,当执行方法play()时触发的事件是()
【判断题】为了满足寒冷地区外窗采光和通风的需要,窗子应做得越大越好。
【单选题】The building has ______ floors and I live on the ______ floor. [ ]
【多选题】按资本运营方式分类,柯将资本运营分为( )