管理费用多属于固定成本，一般是以过去的实际开支为基础，按照预算期的可预见变化来调整。( )
参考答案：对
对下列词语中加粗的错别字，改得不正确的一项是[ ]
A．豪不利己 “豪”改为“毫”
B．妙手隅得 “隅”改为“偶”
C．不屑置辫 “辫”改为“辨”
D．潜兹暗长 “兹”改为“滋”
You very fast if you went from New York to Boston in six hours.
A．should drive
B．must have driven
C．may drive
D．would have driven[
