【判断题】链条葫芦不得超负荷使用,起重能力在5t以下的允许2人拉链,不得随意增加人数猛拉。()
【简答题】Science can now account for many things which were thought to be ________ by ancient people. (mystery)
【判断题】20世纪30、40年代,越剧女子戏班风靡上海,涌现了以袁雪芬为代表的“越剧十姐妹”。
【简答题】广州团购网属于( )模式。A. B2B B. B2C C. C2B D. C2C
【简答题】Science can now account for many things which were thought to be ________ by ancient people. (mystery; 请用所给单词的合适形式填空。)
【单选题】Science can now ________ many things which were thought to be mysterious by ancient people.A) B) C) √D)
【判断题】链条葫芦不得超负荷使用,起重能力在5t以下的允许2人拉链,不得随意增加人数猛拉。操作链条葫芦时,人员不准站在链条葫芦的正下方。
【单选题】链条葫芦不得超负荷使用,起重能力在5t以下的允许()人拉链,不得随意增加人数猛拉。