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【单选题】
关于标准离差与标准离差率,下列表述不正确的是( )。
A.
标准离差是反映概率分布中各种可能结果对期望值的偏离程度
B.
如果方案的期望值相同,标准离差越大,风险越大
C.
在各方案期望值不同的情况下,应借助于标准离差率衡量方案的风险程度,标准离差率越大,方案的风险越大
D.
标准离差率就是方案的风险报酬率
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参考答案:
举一反三
【简答题】全站仪能除了能进行距离测量、角度测量外,还能进行_________、________、_________、__________等测量工作
【多选题】企业发生的制造费用可以采取的分配标准包括
A.
产品质量
B.
人工工时
C.
机器工时
D.
计划分配率
【单选题】A ship can request completion of a ____ when the ship is at a higher security level than the port facility or another ship it is interfacing with.
A.
DOC
B.
DOS
C.
SSP
D.
SMC
【单选题】新建建筑物基础深于原有建筑物基础时,两基础间净距不宜小于两基础底面高差的( )倍
A.
0.5~1
B.
1~2
C.
1.5~2
D.
2~3
【单选题】一站供料到位传感器线缆编码管号码是:
A.
108
B.
109
C.
110
D.
111
【单选题】一站供料到位传感器是:
A.
X8
B.
X9
C.
X10
D.
X11
【单选题】When a ship is involved in an oil pollution incident in China, the ship must report without delay to .
A.
China Maritime Administration
B.
the company
C.
the cargo owner
D.
ship owner
【单选题】When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reducedDue to the function of the governor, the main engine will .
A.
reduce fuel feeding
B.
increase fuel feeding
C.
keep original fuel feeding
D.
be overspeed
【单选题】When the ship security alert system is activated, it shall not .
A.
initiate a ship-to-shore security alert
B.
transmit a ship-to-shore security alert
C.
initiate an alert identifying the ship, its location
D.
raise a security alarm on-board the ship indicating that the ship is under threat
【简答题】光纤管理器件根据光缆布线场合要求分为两类,即光纤配线架和光纤接线箱。光纤配线架适合于 场合,而光纤接线箱适合于 场合。
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