【单选题】BPDU 的12位扩展系统ID中包含下面哪种信息?( )
【单选题】哪种平均数指标受极端值的影响最小() A .算术均数 B .中位数 C .几何均数 D .变异系数 E .标准差
【简答题】下图显示的对亏损经验的频率分布的中心趋势的恰当度量指标。以下哪种说法是准确的: A.因为该分布是对称的,所以平均值、中位数和众数是相等的; B.由于众数考虑了极端的损失额,所以中位数是最恰当的度量指标; C.由于中位数不受极端的损失额的影响,所以中位数是最恰当的度量指标; D.由于平均值总是居于中位数和众数之间,所以平均值是最好的度量指标。
【单选题】The new idea about education in the U. S. is that______ .
A.
everyone should get a college degree
B.
it's no use for adults to go to college
C.
a high school diploma is the end of education
D.
adults should go on learning after graduating from school
【单选题】图为单管电压放大器, 2-4 端作为信号输出,则 ______ 之间应接入待放大的输入信号; ______ 之间应接入工作直流电源。
【单选题】以下关于HTML代码说法正确的是() img {clear:both;}
【单选题】Which of the following generalizations about pioneers ia NOT supported by the passage?
A.
They showed great endurance.
B.
They spent a great deal of money.
C.
They wanted their own land.
D.
They traveled with few possessions.
【单选题】以下关于 HTML 代码说法正确的是()。 img{ clear:both;}
【单选题】By the end of century, English gradually came back into the schools, the law courts, and government and regained social status. A. 12th B . 13th C. 14th D. 15th