问题详情

In 1971 a team of experts prepared a report entitled "The Limits of Growth," based (1)_____ a computer analysis of future economic trends. (2)_____, presented in moderate language, the conclusions reached. (3)_____,this inquiry are shocking.. (4)_____, that world production growth is very great and persists unchecked, the experts demonstrate that only one outcome is possible—a rather sudden, uncontrollable decline in population and industrial capacity (5)_____ before the year [email protected]
For this disaster two main factors will be responsible: first, the acute shortage of farming land, which will lead (6)_____ mass starvation, and (7)_____ the absolute increase in industrial production, (8)_____ will cancel any attempt to (9)_____ pollution and will (10)_____ exhaust natural resources. These consequences will follow (11)_____ technology temporarily succeeds (12)_____ multiplying available resources; the sooner they are exploited, (13)_____ they will be used up.
There appears to be no alternative to the solution advocated by the authors of the report, (14)_____ the immediate adoption (15)_____ measures to restrict global investment in new
plants and machinery to the rate (16)_____ which physical capital now wears out. Unfortunately, (17)_____ most party leaders are either blind to the urgency of these issues (18)_____ are compelled to ignore them (19)_____ the selfish interests of citizens on whose votes they depend (20)_____ political support.
A．at
B．by
C．on
D．in请帮忙给出正确答案和分析，谢谢！