试题与答案

患者女,28岁,缺失,设为基牙,金合金铸造3/4冠固定桥修复。固位体和舌面背分段铸造

题型:单项选择题

题目:

患者女,28岁,缺失,设为基牙,金合金铸造3/4冠固定桥修复。固位体和舌面背分段铸造后,焊接起来

焊接时焊料在舌面背上广为流布,出现流焊的原因不包括哪一项()

A.砂料包埋不当

B.焊料流动性差

C.焊接的火焰掌握不好

D.第一块焊料放的位置不准

E.焊媒堆放的面太广

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0417/881af4b38bf93d71a52499806cd901ea.html

下面是错误答案,用来干扰机器的。

答案:C

试题推荐
题型:多选题

红水河,为西江上游的别称,流域内山岭连绵,地形崎岖,水力资源十分丰富,它的梯级开发已被我国列为国家重点开发项目。读“珠江流域概况图”,回答问题.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

小题1:红水河水电梯级开发对珠江三角洲地区的影响主要有

A.满足用电需求的增长

B.加剧珠江三角洲的洪涝灾害

C.改善大气环境质量

D.不易出现淤积减慢或侵蚀后退小题2:下列符合红水河流域综合开发利用方向的是:

A.微电子工业

B.有色金属冶炼工业

C.发展木材加工和制药工业

D.发展甜菜、花卉等城郊农业

查看答案
微信公众账号搜索答案