ahasusanna

试着解释一下：
题型：因果型weaken类题目
Articles in Gardening Magazine often spur sales of the plants they describe, particularly among people new to gardening. （前提） Accordingly, we will no longer publish articles or accept advertisements praising the beauty of rare wildflowers.  （中间结论）Most such plants sold to gardeners have been difficult to propagate under cultivation, so plant sellers often collect them in the wild. （前提） Our new policy is part of our efforts to halt this yearly plundering of our native plant populations.（结论）
结论：不发表文章或是接受广告（new policy）可以导致“阻止对本土植物的破坏的结果”。
再看选项：
A. When people new to gardening buy plants, they often fail to take adequate care of the plants that they buy and become discouraged from buying those varieties again.无关
B. Plant sellers who sell rare wildflowers have no reasonably inexpensive alternative way to offer their wares directly to new gardeners.加强，别无选择，所以肯定会破环野花（wares复数，是商品货物的意思）
C. The demand for rare wildflowers rarely exceeds the number of such plants that can be collected in the wild by plant sellers.无关
D. The propagation of rare wildflowers often depends on the plants' interaction with other organisms in their environment, such as plants that create suitable soil conditions or insects and birds that disperse seeds.无关嘛
E. Revenues from sales of plants collected in the wild are supporting the discovery of new low-cost techniques enabling rare wildflowers to be readily propagated in nurseries.
E说从采集野花的收入可以支持新的低成本技术，这种新技术可以使野花很好的培育。
采集野花也就是说可以写article和广告啦，也可以达到保护的目的。典型的无因有果削弱。