【单选题】He made a promise ______ he would help me.
【单选题】He made a promise __________he would help me.
【单选题】在不影响其紧后工作按最早开始时间和有关时限的前提下,一项工作可以利用的机动时间是( )
【简答题】中国历史上形成最早、最完整的戏曲形式是()。
【简答题】所谓滤波,就是将整流后的脉动直流电中的( ),使之变为平滑直流电的过程。滤波原理是利用电容两端电压不能突变的原理。
【单选题】在工程网络计划中,如果某项工序拖延的时间超过其自由时差但没有超过总时差,则( )。
【单选题】He talked ______ he had never met me before, which made me quite embarrassed.
【简答题】南戏是中国戏曲最早的成熟形式,又称( )和( )
【单选题】—Tell me what element is the underlined part in the sentence 'He made me stand outside' . —It's ________ [ ]