A.1
B.-1
C.3
D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3
[单选题]设L为从点A(0,-2)到点B(2,0)的有向直线段,则对坐标的曲线积分等于( )。A.1B.-1C.3D.-3