脚手架垫板宜采用长度不少于()跨、厚度不小于50mm的木垫板,也可采用槽钢。A、一B 发布时间:2019-02-01 14:41 │ 来源:www.tikuol.com 题型:单项选择题 问题: 脚手架垫板宜采用长度不少于()跨、厚度不小于50mm的木垫板,也可采用槽钢。A、一B、二C、三D、四
题型:单项选择题 — My cat's really fat. — You ________ have given her so much food. [ ]A. wouldn't B. couldn't C. shouldn't D. mustn't 查看答案
题型:单项选择题 男,22岁,下腰部疼痛,腰部僵硬不能久坐近1个月,逐渐累及胸部。检查:骶髂关节有深压痛,X线片显示两侧骶髂关节密度增高,。HLA-B27(+)。该病人最可能的诊断是A.骶髂关节骨关节病B.骶髂关节结核C.致密性髂骨炎D.强直j生脊柱炎 查看答案