腮腺鞘是由下面哪一层筋膜包裹而成() A.颈浅筋膜 B.颈深筋膜中层 C.颈深筋膜浅 发布时间:2019-01-27 06:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 腮腺鞘是由下面哪一层筋膜包裹而成()A.颈浅筋膜B.颈深筋膜中层C.颈深筋膜浅层D.颈深筋膜深层E.颈阔肌筋膜
题型:单项选择题 How should you signal the crane operator to raise the boom?().A.Extend arm with the thumb pointing up and flex the fingers in and outB.Place both fists in front of the body with the thumbs pointing upwardC.With forearm vertical and forefinger pointing up,move hand in small horizond circlesD.Extend arm with the fingers closed and thumb upward 查看答案