[求助]of的用法，og128与og219的题干

128. New hardy varieties of rice show promise of pro­ducing high yields without the costly requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties.

(A)  requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties

(B)   requirements by earlier high-yielding varieties of application of commercial fertilizer and irrigation

(C)  requirements for application of commercial fertilizer and irrigation of earlier high-yielding varieties

(D)  application of commercial fertilizer and irriga­tion that was required by earlier high-yielding varieties

(E)   irrigation and application of commercial fertil­izer that were required by earlier high-yielding varieties

Choice E, the best answer, clearly and grammatically expresses the idea that two costly procedures, irrigation and the applica­tion of... fertilizer, were required by earlier high-yielding varieties of rice. In A, the placement of by earlier... varieties immediately after application of fertilizer suggests that the varieties applied the fertilizer. In B and D, the phrase applica­tion of... fertilizer and irrigation is ambiguous in meaning: it cannot be clearly determined whether applying fertilizer and irrigating are a single operation or two distinct operations. In C, only irrigation--not both irrigation and fertilization--is clearly associated with the earlier... varieties of rice.

219. While larger banks can afford to maintain their own data-processing operations, many smaller regional and community banks are finding that the cost asso­ciated with upgrading data-processing equipment and with the development and maintenance of new products and technical staff are prohibitive.

我不太明白of的用法到底是怎样的。

这里D的错误OG说是D里面的容易歧义。如果application是主语，后面用was，那这么解释：A）商业化肥和灌溉的应用，还是B）商业化肥的应用，和灌溉？所以有歧义的。

而仔细又看了一下这道题感觉E也有歧义“1 灌溉与商用化肥的应用were   2商务化肥的灌溉与应用 were“

我根据og128与og219总结of结构如下

(a and b) of c这种结构就只能是a,b共同属于c，即og128题的E是“商务化肥的灌溉与应用 were”而不是“

感觉还是迷糊~

就好象就象og219题（ development and maintenance ）of （new products and technical staff）

这里是不是有无数层歧义？如发展与新产品和技术员工的维护，新产品的发展与维护和技术员工等，当然这里可以用逻辑意思知道发展与维护和技术员工不对应，这样可以排除一些歧义。

麻烦NN指教~谢谢~

up~

keep on upping~:p

感觉很难总结.最重要的是逻辑意思.正确答案E本身单从语法也有别的解释, 但逻辑上只有一个.

og219: （ development and maintenance ）of （new products and technical staff）当时我也想了一下, 语法上是有很多解释, 但讲的通的大家都熟悉的说法可能只有一个.如果有哪个高手总结出来了, 请贴一下, 先谢了.

128的D歧义在于可以有两种理解：application of commercial fertilizer and (application of irrigation)或application of (commercial fertilizer and irrigation)，而且，这两种解读从逻辑上都可以接受，这就是OG所谓的到底是整体还是个体；E其实没有歧义，因为，如果按整体概念补出的话irrigation of commercial fertilizer从逻辑上根本不匹配；其实A and B of C的确可以有多种解读方法，关键在于是否逻辑匹配，但是个人认为，(A of C) and (B of C)是优先的结构，如果说不通，A and (B of C)也可以作为一种选择。

谢谢stoneren GG和hpp920 MM

你们的意思就是对于这种结构应该逻辑为先对么。我明白了谢谢～

（小声问stoneren一句：你说“因为，如果按整体概念补出的话irrigation of commercial fertilizer从逻辑上根本不匹配；”但是我觉得商业化肥的灌溉也可以啊，难道只有水的灌溉才可以？呵呵，也许有些钻牛角尖了，但是有一些逻辑题，我总是看着答案知道有道理，但是自己做却总是看不出来。）

another question:

除了蓝色部分，其他完全同意这样的解释。

agree