【单选题】_____ he was very tired, he continued working in his office.
【单选题】若X线机可用220V也可用380V供电时,选380V供电的原因是
【简答题】Even though he was the leading candidate for the position, he continued to campaign______(像以往一样积极).
【单选题】He paused for a moment, then continued speaking.
【单选题】They feared that he would _____ if he continued to work on the project day and night. [ ]
【单选题】若X线机可用220V也可用380V供电时,选择380V供电的原因是