【单选题】In Project Risk Management, Risk Response may include actions to:
A.
reduce the probability of risk events
B.
change the scope, budget, schedule or quality specifications of the project
C.
reduce the consequences or severity of impacts of a potential risk event
【判断题】一项有效的发盘,一且被受盘人无条件地全部接受,合同即告成立。
【简答题】如图所示电路,根据电阻的联结情况分析,若要计算图中电压或电流则需要对电阻网络进行△-Y等效变换,若将图中由10Ω、8Ω和2Ω组成的△形等效变换成Y形,则等效变换后Y形电阻 R 1 = Ω, R 2 = Ω, R 3 = Ω。利用等效变换后的电路进行相应计算,可得:Rab= Ω, I 1 = A, I 2 = A, Uab= V, U= V 。
【单选题】One of the advantages of taking notes is that it forces you to pay closer attention to the class lecture. If you listen【36】to a professor who is talking on and on for an hour or so, your mind will oft...
【判断题】(310-U8)相控阵雷达是一种以改变雷达波相位来改变波束方向的雷达。
【单选题】Risk management is concerned with
A.
the identification and treatment of loss exposures.
B.
the management of speculative risks only.
C.
the management of pure risks that are uninsurable.
D.
the purchase of insurance only.
【单选题】下列()方式声明的变量在每次调用该过程时其值不能保留。
【简答题】如图a所示,u s1 =24V,u s2 =6V,R 1 =12kΩ,R 2 =6kΩ,R 3 =2kΩ。图b为经电源变换后的等效电路,则u s1 、u s2 发出的功率( )于i s 发出的功率,R 3 消耗的功率为( )。
【简答题】如图a所示,u s1 =24V,u s2 =6V,R 1 =12kΩ,R 2 =6kΩ,R 3 =2kΩ。图b为经电源变换后的等效电路,该等效电路中电流源的电流i s 为(),等效电阻R为()。