(D)80. The author provides a sustained argument to support which of
the following assertions?
(A)Profitability is neither necessary nor sufficient for a new technology
to be adopted.
(B)Profitability is the key factor guiding technological change.
(C)Economic factors and governmental policies strongly influence the
ultimate success of any innovation.
(D)Opaque-2 maize is of limited enefit to poor families in developing
countries.
答案(C)也可以吧?在第三段第二行有提到阿?