下列元素的生物地球化学循环属于气相型的是 ( )A.磷 B.钙 C.氮 D.铁 发布时间:2017-06-18 06:10 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下列元素的生物地球化学循环属于气相型的是 ( )A.磷B.钙C.氮D.铁
题型:单项选择题 患者,男11岁,左右上下颌第一磨牙呈反、缺失,上颌后缩,下颌前突,前牙反牙合,面中1/3凹陷,下颌可后退至对刃。X线可见,龈下3mm阻生,之间各3mm间隙。此病例应诊断为 ()A.安氏Ⅰ类 B.安氏Ⅱ类 C.安氏Ⅲ类 D.毛氏Ⅱ1 E.毛氏Ⅲ2 查看答案
题型:单项选择题 Mary said she didn't care anything about John, but her red face .[ ]A. gave her awayB. put her awayC. got her awayD. threw her away 查看答案