◎ 题干
A major search has been_____ for a Malaysian Airlines jet with 239 people on board after it lost contact flying from Kuala Lumpur to Beijing.
A.identified B.launched C.substituted D.dissolved
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“A major search has been_____ fora Malaysian Airlines jet with 239 people on board after it lost contact flying from Kuala Lumpur to Beijing.A.identifiedB.launch…”主要考查了你对  【现在完成时】【现在完成时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。