在Access中已建立了“学生”表,表中有“学号”、“姓名”、“性别”和“入学成绩”等字段。执行如下SQL命令:Sele 在Access中已建立了“学生”表,表中有“学号”、“姓名”、“性别”和“入学成绩”等字段。执行如下SQL命令:Select性别,avg(入学成绩)From学生 分类:理工类 题型:单选题 查看答案
Her father was a quiet man with graceful manners. Her father was a quiet man with graceful manners.A.polite B.similar C.usual D.ba 分类:理工类 题型:单选题 查看答案
The word "controversial" in the last sentence of this passag The word "controversial" in the last sentence of this passage is closest in mea 分类:理工类 题型:单选题 查看答案
Practically all animals communicate through sounds. Practically all animals communicate through sounds.A.Almost B.Clearly C.Absolut 分类:理工类 题型:单选题 查看答案