高重心物件起吊,宜在()加索。A.重心上部 B.重心处 C.重心下部 D.底盘 发布时间:2019-09-20 18:28 │ 来源:www.tikuol.com 题型:单项选择题 问题: 高重心物件起吊,宜在()加索。A.重心上部B.重心处C.重心下部D.底盘
题型:单项选择题 – The kidnapped American captain was rescued from the Somali pirates(海盗). -- But for the help of the US Navy, he _______ freed then.A.may not beB.wouldn’t have beenC.wouldn’t be D.mustn’t have been 查看答案