未知题型 我国目前的研究生招生考试属于( )。 A．标准参照测验 B．智力测验 C．预测性测验 D．成就测验

单项选择题 函数在( )上是连续的． (A)(-∞，-1)∪(1，+∞) (B)(-∞，-1)∪(-1，1)∪(1，+∞) (C)[-2，-1)∪(-1，1)∪(1，2] (D)[-2，-1)∑(1，2]

单项选择题 As ______ the quantity of our orders to be placed will be very large, and it is ______ that the prices you are going to quote would be very competitive． A．expect, anticipate B．expected, anticipated C．expect, participate D．expected, participated