In the second paragraph, the author suggests that 'economists' would______. A.plan the economy through yearly forecasts B.fail to consider the influence of technological innovation C.value the economic contribution of farm animals D.consult the national commission on the economy
A.A.plan B.fail C.value D.consult
【参考答案】
B 解析：细节题。第二段第四句话，经济学家认为到1970年马或骡子的数量要达到5 000万(Had they ......