two DogslED tEAms rACED ACross A 300-milE CoursE in wyoming. tEAm
A、FinishED thE CoursE in 3 FEwEr hours thAn DiD tEAm
B、iF tEAmA’s AvErAgE spEED wAs 5 milEs pEr hour grEAtEr thAn thAt oF tEAmB, whAt wAs tEAmB’s AvErAgE spEED, in milEs pEr hour
A、12
B、15
C、18
D、20
E、25