The passage advertises overseas
A. jobs.
B. studies.
C. travel.
D. aid.
If you leave for Hong Kong on March 16th, you pay()
A. $ 799.
B. $ 849.
C. $ 829.
D. $ 969.
(4)d点总的短路冲击电流以为( )。
A. 21.97kA
B. 19.64kA
C. 2.37kA
D. 17.27kA
(4)d点的短路冲击电流以为( )。
A. 65.79kA
B. 73.82kA
C. 68.34kA
D. 70.89kA