【单选题】But for the interruption of endless phone calls, he ________ the report.
【单选题】the interruption, he was able to finish exercise before the class was over.
【单选题】____ the interruption, he was able to finish his exercises before the class was over.
【判断题】双压力泵式中央门锁压缩空气为门锁打开,抽吸空气为门锁锁住。( )
【判断题】在网络贸易中有曝光才有点击,有点击才有询盘,有询盘才有订单,有订单才有利润。
【简答题】欲配制0.1000mol.L -1 Na 2 CO 3 溶液150.0ml,应准确称取Na 2 CO 3 的质量为 克。
【单选题】在中国传播马克思主义的杰出代表.《我的马克思主义观》一文的作者是( )。
【单选题】_____ the interruption, he was able to finish exercise before the class was over.
【单选题】____ the interruption, he was able to finish his exercises before the class was over.
【简答题】欲配制 50.00ml 0.1000mol.L -1 的硼砂溶液,需取 Na 2 B 4 O 7 .10H 2 O 多少克?