尖瓣附着于()的周缘上。A.心脏的右房室口 C.心脏的主动脉口 B.心脏的左房室口 发布时间:2017-05-28 17:10 │ 来源:www.tikuol.com 题型:单项选择题 问题: 尖瓣附着于()的周缘上。A.心脏的右房室口C.心脏的主动脉口B.心脏的左房室口D.心脏的肺动脉口
题型:单项选择题 On April 14, 2010, a serious earthquake happened in Yushu. More than 2,000 people ______ in it.[ ]A. dead B. death C. died D. die 查看答案
题型:单项选择题 After searching through the mountain, they managed to _____ the missing children.A.pointB.placeC.spotD.site 查看答案