【单选题】卸扣使用应注意() ①不许超负荷作业; ②不可横向受力; ③带螺纹的横栓不得碰损; ④卸扣不用时横销要上油以保持润滑。
【单选题】使用卸扣应() ①不可横向受力; ②不许超负荷; ③发现生锈应立即刮除,上油。
【单选题】She once said,' When people ask me whether writing has been a hard or easy road I always answer with the famous saying: The end is nothing; the road is all. That is what I mean when I say writing has ...
B.
opened up a road to success
C.
neither too hard nor too easy
D.
interesting and enjoyable
【单选题】使用卸扣时应注意:() ①、不可横向受力;②、不许超负荷;③、发现生锈应立即刮除,上油
【单选题】She has said nothing ________ your request.
【判断题】生酮饮食法是一种有效的治疗手段,但不适合个人操作,因此需要在医生的监管下进行