【多选题】电影的场面调度包括()两个主要方面,目的是引导观众从特定的距离和角度去观赏画面内容。
【判断题】数控机床上用的刀具应满足安装调整方便、刚性好、精度高、寿命长等要求。
【单选题】The committee's report is because it not as valuable as it might have been addresses only the symptoms and not the ______causes of the problem.
【简答题】套筒滚子链由 、外链板、 、套筒和滚子组成。