【单选题】You can go fishing ____ you promise to be back before 11 o’clock.
【简答题】You can go fishing ___________ you promise to be back before 11 o'clock.
【简答题】P.83 IV. Fill in the blanks with the expressions given below. Change the form where necessary. forbid from without fail volunteer for vanish into as long as right away be thankful for write back more ...
【单选题】You can go fishing, _____ and enjoy this beautiful clean air.
【简答题】左思《咏史》(郁郁涧底松)揭露了怎样的社会现实?
【单选题】左思的《咏史诗》开篇曰:“郁郁涧底松,离离山上苗。以彼径寸茎,荫此百尺条。”诗句中的“彼”和“此”分别是指()。
【单选题】进行主电路接线时,应确保输入、输出端不能接错,即电源线必须连接至( ),绝对不能接错 ,否则会损坏变频器。
【简答题】郁郁涧底松,( )。以彼径寸茎,( )。(左思《咏史》)
【判断题】电源必须接R,S,T,绝不能接U,V,W,李则会损环变频器