T8 Bulbs are more energy-efficient and have a smaller diameter (1 inch) than T12 Bulbs, which are less efficient with a larger diameter (1.5 inches).
s story. 【T7】___B. One theory believes that man continually【T8】___. 【T8】___—【T9】___must be more intelligent and civilized【T9】___than his ancestors.—Human race will evolve into a race of【T10】___. 【T10】___C. The second theory holds the man’s history is ...
shippers【t10】___or other forms of transportation would do so,leaving remaining customers to shoulder the cost of keeping up the lin e.it"s theory to which many economists subscribe, but in practice it often leaves railroads in the position of determining【t11】___and which will fail."do...