为判断安氏Ⅲ类骨型反患者能否使用口外上颌前方牵引矫治器,常要看() A.Ⅰ度拥挤 B 发布时间:2017-05-04 17:37 │ 来源:www.tikuol.com 题型:单项选择题 问题: 为判断安氏Ⅲ类骨型反患者能否使用口外上颌前方牵引矫治器,常要看()A.Ⅰ度拥挤B.Ⅲ度深覆C.Ⅱ度深覆盖D.Ⅱ度开E.手腕部X线片
题型:单项选择题 I would rather time with my family than cards with others on weekends. [ ]A. spend; play B. to spend; to play C. to spend; play D. spending; playing 查看答案
题型:单项选择题 水蒸气在列管换热器中加热某盐溶液,水蒸气走壳程。为强化传热,下列措施中最为经济有效的是()。A、增大换热器尺寸以增大传热面积B、在壳程设置折流挡板;C、改单管程为双管程;D、减小传热壁面厚度。 查看答案