单项选择题10()
A. The most important inputs are labour and capital, which have a special meaning in economics.
B. In the case of enterprises and companies, this may not seem to be true.
C. Of course it is true, but most goods are produced by businesses.
D. Machinery in an automobile assembly plant is called capital.
E. Capital and labour are factors of production, among which labour plays an important role.
F. As far as the term capital is concerned, it is especially confusing.
G. A good is scarce if there is not enough of it for everyone to have all they want at a zero pric