You can not judge whether you have exercised too much or not by ()

A．you will lose more weight running one mile than walking the same distance
B．you will use more energy walking one mile than running the same distance
C．for the same distance the faster you walk, the more energy you will use
D．whether you run one mile or walk the same distance, you use the same energy

A．South Africa controlled about ＄19.9 billion in sales in 1980.
B．There were more and more Latin American companies engaged in business in the U. S..
C．In 1979 Hong Kong was the largest foreign investor in the U. S..
D．The combined sales of the top 100 foreign investing companies increased steadily.