【简答题】After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys ___________ to go to school. A) to be encouraged B) been encouraged C) being encourag...
【单选题】After we _____ them, we _____ the last month. [ ]
【单选题】混合气在气缸内燃烧的最高压力出现在( )为宜。
【单选题】混合气在气缸内燃烧的最高压力出现在( )为宜
【单选题】If England (had won) the Revolutionary War, (the) whole history of the (English-speaking) world (had been) different.
【简答题】Zewail had already had good academic qualifications ______ before he won the Nobel Prize in chemistry.
【单选题】混合气在气缸内燃烧,当最高燃烧压力出现在上止点后曲轴转角()左右时,发动机的输出功率最大。
【单选题】混合气在气缸内燃烧,当最高压力出现在上止点( )左右时,发动机输出功率最大,此时所对应的点火提前角称为最佳点火提前角。