【单选题】The top detective asked the witness if he had seen _______ at about 10 p.m.____.
A.
something unusual , last night
B.
unusual something , the night before
C.
anything unusual, last night
D.
anything unusual , the night before
【单选题】下列关于聚合函数说法错误的是( )。
B.
MAX聚合函数可以出现在HAVING 子句中
C.
COUNT聚合函数的参数中不能使用distinct短语
【简答题】Scientists working on a problem do not know and sometimes can’t even guess what the final result will be. Professor Rontgen was a physicist at the University of Wurzburg in Germany. Late on Friday, 8 ...
【单选题】悬挂式点焊机与点焊机器人相比,优点是?()
A.
提高车身焊装线的自动化程度,减轻操作者的劳动强度
【简答题】10第八单元第10题作业 素材链接: http://pan-yz.chaoxing.com/share/info/14d6df4dd50b90fe 效果图如下
【单选题】He had something urgent to do, so he asked _____.
【单选题】画在图样外围的第一道尺寸线,与图样的最外轮廓线的距离不宜小于()。
【判断题】第一层尺寸线距图样最外轮廓线之间的距离不宜小于10MM。平行排列的尺寸线的间距,宜为7—10MM,并应保持一致
【单选题】可分为一级文物、二级文物和三级文物的是()。