【单选题】Ceteris paribus, the duration of a bond is negatively correlated with the bond's
D.
coupon rate and yield to maturity.
E.
None of these is correct.
【单选题】已知三相电源线电压U L =380V,三角形联接对称负载Z=(6+j8)Ω。则相电流I L =( )A。
【单选题】由于组合旅游团游客分住在不同饭店,因此,在接待他们出发旅游之前,导游人员要同司机商定( )。
【单选题】已知三相电源线电压 U L =380V ,三角形联接对称负载 Z = (6+j8)Ω ,则线电流 I l = ( ) A 。
【单选题】已知三相电源线电压 U L =380V ,三角形联接对称负载Z= (6+j8) Ω。则线电流 I L = ( ) A 。
【单选题】Economists use the phrase ceteris paribus to express the assumption
A.
"everything affects everything else."
C.
"there is no such thing as a free lunch."
D.
"scarcity is a fact of life."
【单选题】已知三相电源线电压U l =380V,三角形联接对称负载Z=6+j8Ω,则相电流I p =()A。
【单选题】已知三相电源线电压U L =380V,三角形联接对称负载Z=(6+j8)Ω。则线电流I L =( )A。