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【单选题】
下列电离方程式错误的是
A.
NaOH=Na + +OH -
B.
CuSO 4 =Cu 2 + +SO 4 2 -
C.
H 2 SO 4 =2H + +SO 4 2 -
D.
KMnO 4 =K + +Mn 2+ - +4O 2 -
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参考答案:
举一反三
【单选题】Cloud Co obtained a60%holding in the 100,000 $1 shares of Mist Co on 1 January 20X8, when the retained earnings of Mist Co were $850,000. Consideration comprised $250,000 cash, $400,000 payable on 1 J...
A.
$139,370
B.
$169,000
C.
$119,370
D.
$130,370
【单选题】具有战略性色彩的人力资源规划是
A.
整体的人力资源规划
B.
短期人力资源规划
C.
中期人力资源规划
D.
长期人力资源规划
【单选题】Cloud Co obtained a 60% holding in the 100,000 $1 shares of Mist Co on 1 January 20X8, when the retained earnings of Mist Co were $850,000. Consideration comprised $250,000 cash, $400,000 payable on 1...
A.
$119,370
B.
$139,370
C.
$169,000
D.
$130,370
【单选题】The data accumulated was obtained through ______.
A.
observation by social psychologists
B.
conversations with motl3ers of the children
C.
interviews, school records and physicians' reports
D.
observations of fathers with their children
【单选题】将非电量转换为电量的器件,通常称为
A.
变换器
B.
检测器
C.
传感器
D.
感应器
【单选题】Excel工作表中单元格A1到A6求和,正确的公式是( )。
A.
=COUNT(A1:A6)
B.
=SUM(A1,A6)
C.
=SUM(A1:A6)
D.
=COUNT(A1,A6)
【多选题】下列属于战术层次的人力资源规划的是()。
A.
人力资源需求的战略性预测
B.
总体规划
C.
职务编制规划
D.
人员配置规划
E.
人员招聘规划
【单选题】Evidence obtained from observation and experiment is often used to ________ a scientific theory.
A.
confirm
B.
claim
C.
conclude
D.
calculate
【简答题】Rp1 保持不变, K1 至“ 3 ”的位置,调节 Rp2 顺时针旋到底,测试 Vb3= , Ic1= ,再次调节 Rp2 逆时针旋到底,测试 Vb3= , Ic1= ,将 Rp2 调到中间位置,测试 Vb3= , Ic1= 。
【判断题】决策支持系统(DSS)主要是基于数据仓库、联机数据分析和数据挖掘技术的应用。
A.
正确
B.
错误
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