• 2022-05-28 问题

    Traffic flow of ( ) is in a completely free flow state. A: LOSⅠ B: LOSⅡ C: LOS Ⅲ D: LOS Ⅳ

    Traffic flow of ( ) is in a completely free flow state. A: LOSⅠ B: LOSⅡ C: LOS Ⅲ D: LOS Ⅳ

  • 2021-04-14 问题

    表达式 Day({^2007/03/20}+10)的值为

    表达式 Day({^2007/03/20}+10)的值为

  • 2022-10-26 问题

    某年在某地随机抽取100名健康女性,算得其血清总蛋白含量的均数为74g/L,标准差为4g/L,则其95%参考值范围估计为()。 A: 74±4×4 B: 74±1.96×4 C: 74±2.58×4 D: 74±2.58×4÷10 E: 74±1.96×4÷10

    某年在某地随机抽取100名健康女性,算得其血清总蛋白含量的均数为74g/L,标准差为4g/L,则其95%参考值范围估计为()。 A: 74±4×4 B: 74±1.96×4 C: 74±2.58×4 D: 74±2.58×4÷10 E: 74±1.96×4÷10

  • 2022-10-26 问题

    某地某年随机抽取100名健康女性,算得其血清总蛋白含量的均数为74g/L,标准差为4g/L,则其95%的参考值范围() A: 74±1.96×4÷10 B: 74±1.96×4 C: 74±2.58×4 D: 74±2.58×4÷10

    某地某年随机抽取100名健康女性,算得其血清总蛋白含量的均数为74g/L,标准差为4g/L,则其95%的参考值范围() A: 74±1.96×4÷10 B: 74±1.96×4 C: 74±2.58×4 D: 74±2.58×4÷10

  • 2021-04-14 问题

    1)根据表查询平均成绩大于等于60分的同学的学生编号和学生姓名和平均成绩 2)根据表查询在SC表存在成绩的学生信息 实验数据: 学生表: createtableStudent( Sidvarchar(6), Snamevarchar(10), Sagedatetime, Ssexvarchar(10)); insertintoStudentvalues('01','赵雷','1990-01-01','男'); insertintoStudentvalues('02','钱电','1990-12-21','男'); insertintoStudentvalues('03','孙风','1990-05-20','男'); insertintoStudentvalues('04','李云','1990-08-06','男'); insertintoStudentvalues('05','周梅','1991-12-01','女'); insertintoStudentvalues('06','吴兰','1992-03-01','女'); insertintoStudentvalues('07','郑竹','1989-07-01','女'); insertintoStudentvalues('08','王菊','1990-01-20','女') 成绩表 createtableSC( Sidvarchar(10), Cidvarchar(10), scoredecimal(18,1)); insertintoSCvalues('01','01',80); insertintoSCvalues('01','02',90); insertintoSCvalues('01','03',99); insertintoSCvalues('02','01',70); insertintoSCvalues('02','02',60); insertintoSCvalues('02','03',80); insertintoSCvalues('03','01',80); insertintoSCvalues('03','02',80); insertintoSCvalues('03','03',80); insertintoSCvalues('04','01',50); insertintoSCvalues('04','02',30); insertintoSCvalues('04','03',20); insertintoSCvalues('05','01',76); insertintoSCvalues('05','02',87); insertintoSCvalues('06','01',31); insertintoSCvalues('06','03',34); insertintoSCvalues('07','02',89); insertintoSCvalues('07','03',98) 课程表 createtableCourse( Cidvarchar(10), Cnamevarchar(10), Tidvarchar(10)); insertintoCoursevalues ('01','语文','02'); insertintoCoursevalues ('02','数学','01'); insertintoCoursevalues ('03','英语','03') 教师表 createtableTeacher( Tidvarchar(10), Tnamevarchar(10)); insertintoTeachervalues ('01','张三'); insertintoTeachervalues ('02','李四'); insertintoTeachervalues ('03','王五')

    1)根据表查询平均成绩大于等于60分的同学的学生编号和学生姓名和平均成绩 2)根据表查询在SC表存在成绩的学生信息 实验数据: 学生表: createtableStudent( Sidvarchar(6), Snamevarchar(10), Sagedatetime, Ssexvarchar(10)); insertintoStudentvalues('01','赵雷','1990-01-01','男'); insertintoStudentvalues('02','钱电','1990-12-21','男'); insertintoStudentvalues('03','孙风','1990-05-20','男'); insertintoStudentvalues('04','李云','1990-08-06','男'); insertintoStudentvalues('05','周梅','1991-12-01','女'); insertintoStudentvalues('06','吴兰','1992-03-01','女'); insertintoStudentvalues('07','郑竹','1989-07-01','女'); insertintoStudentvalues('08','王菊','1990-01-20','女') 成绩表 createtableSC( Sidvarchar(10), Cidvarchar(10), scoredecimal(18,1)); insertintoSCvalues('01','01',80); insertintoSCvalues('01','02',90); insertintoSCvalues('01','03',99); insertintoSCvalues('02','01',70); insertintoSCvalues('02','02',60); insertintoSCvalues('02','03',80); insertintoSCvalues('03','01',80); insertintoSCvalues('03','02',80); insertintoSCvalues('03','03',80); insertintoSCvalues('04','01',50); insertintoSCvalues('04','02',30); insertintoSCvalues('04','03',20); insertintoSCvalues('05','01',76); insertintoSCvalues('05','02',87); insertintoSCvalues('06','01',31); insertintoSCvalues('06','03',34); insertintoSCvalues('07','02',89); insertintoSCvalues('07','03',98) 课程表 createtableCourse( Cidvarchar(10), Cnamevarchar(10), Tidvarchar(10)); insertintoCoursevalues ('01','语文','02'); insertintoCoursevalues ('02','数学','01'); insertintoCoursevalues ('03','英语','03') 教师表 createtableTeacher( Tidvarchar(10), Tnamevarchar(10)); insertintoTeachervalues ('01','张三'); insertintoTeachervalues ('02','李四'); insertintoTeachervalues ('03','王五')

  • 2022-06-07 问题

    已知矩阵A=|12,-10|,向量B=|74|,计算A∧5B的值

    已知矩阵A=|12,-10|,向量B=|74|,计算A∧5B的值

  • 2022-06-15 问题

    中国大学MOOC: 已知直线AB的坐标方位角为74°23′08″,AB与BC左夹角为136°03′29″,直线BC的坐标方位角为多少?

    中国大学MOOC: 已知直线AB的坐标方位角为74°23′08″,AB与BC左夹角为136°03′29″,直线BC的坐标方位角为多少?

  • 2022-06-05 问题

    The passage is mainly about (). A: the construction of parking spaces in Los Angeles B: the new growth pattern of the city of Los Angeles C: the public transportation system in Los Angeles D: the problem of traffic jams iii Los Angeles

    The passage is mainly about (). A: the construction of parking spaces in Los Angeles B: the new growth pattern of the city of Los Angeles C: the public transportation system in Los Angeles D: the problem of traffic jams iii Los Angeles

  • 2022-06-05 问题

    面心立方、体心立方和密排六方的空间利用率分别为__________________。 A: 74%、74%、74% B: 68%、68%、68% C: 74%、68%、74% D: 68%、74%、68%

    面心立方、体心立方和密排六方的空间利用率分别为__________________。 A: 74%、74%、74% B: 68%、68%、68% C: 74%、68%、74% D: 68%、74%、68%

  • 2022-06-26 问题

    面心立方、体心立方和密排六方的配位数分别为 A: 74%、68%、74% B: 68%、68%、68% C: 68%、74%、68% D: 74%、74%、74%

    面心立方、体心立方和密排六方的配位数分别为 A: 74%、68%、74% B: 68%、68%、68% C: 68%、74%、68% D: 74%、74%、74%

  • 1 2 3 4 5 6 7 8 9 10