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【单选题】
下列有关随机误差的正态分布曲线的论述中,错误的是: A. B. C. D .A.
横坐标 x 值等于总体平均值 μ 时，曲线出现极大值
B.
曲线与横坐标间所夹的面积的总和代表所有测量值出现的概率和，其值为 1
C.
纵坐标 y 值代表概率，它与标准偏差 σ 成正比， σ 越小，测量值越分散，曲线越平坦
D.
分布曲线以 x ＝ μ 点作纵坐标为其对称轴呈镜面对称，说明绝对值相等的正负误差出现的概率相等
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反馈参考答案：
举一反三
【单选题】The officials were eager to _____ us of the safety of the nuclear reactors.
A.
criticize
B.
convince
C.
curse
D.
cooperate
【简答题】The situation was once again becoming so serious that the officials were asked to ( ) immediately.
【单选题】The home team made sure that the officials were on their side. They won a close game and the championship with many questionable decisions from the officials. However, no one from any other town would...
A.
real
B.
talented
C.
sneaky
D.
good looking
【简答题】按顺序选择,实现对数据库的增加操作。
【多选题】LTE中,对于高优先级频率的小区重选,在满足以下哪些条件后运行?
A.
高优先级频率小区的S值大于预设的门限，且持续时间超过Treselection。
B.
终端驻留原小区时间超过1秒钟。
C.
如果最高优先级上多个相邻小区符合标准的话，选择最高优先级频率上的最优小区。
D.
服务小区S值小于预设的门限，并且高优先级频率小区的S值大于预设的门限，且持续时间超过Treselection。
【单选题】The officials were eager to ________ us of the safety of the nuclear reactors.
A.
convince
B.
confine
C.
conform
D.
confront
【简答题】The officials were eager to us of the safety of the nuclear reactors.
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