98.Monitoring and targeting programs have been so effective that they show typical reductions in annual energy cost in the various industrial sectors between……….
a. 10 to 30 % c. 5 to 20%
b. 5 to 10 % d. 5 to 30%
a. 10 to 30 % c. 5 to 20%
b. 5 to 10 % d. 5 to 30%