LOG321Xuất hiện trong 1 đề thi
Which statement(s) is/are correct?
Các lựa chọn
ANumber of railroad carriers is small in part due to large financial barriers to entry
BNumber of railroad carriers is large in part due to small financial barriers to entry
CIn railroads, fixed rights-of-way impedes door-to-door service
DIn railroads, fixed rights-of-way improve door-to-door service