19. In addition to having more protein -than wheat does, the protein in rice is higher quality than that in wheat，with more of the amino acids essential to the human diet. (A) the protein in rice is higher quality than that in (B) rice has protein of higher quality than that in (C) the protein in rice is higher in quality than it is in (D) rice protein is higher in quality than it is in (E) rice has a protein higher in quality than
answer is B.
Answer to Question 19 In this sentence, the initial clause modifies the nearest noun, identifying it as the thing being compared with wheat. By making protein the noun modified, choices A, C, and D illogically compare wheat with protein and claim that the protein in rice has more protein than wheat does. In C and D, the comparative structure higher in quality than it is in wheat absurdly suggests that rice protein contains wheat. B, the best choice, logically compares wheat to rice by placing the noun rice immediately after the initial clause. B also uses that to refer to protein in making the comparison between the proteins of rice and wheat. Choice E needs either that in or does after wheat to make a complete and logical comparison.
A 中的 that 我为什么不可以认为只是指代 the protein, 而不是指代 the protein in rice? 尤其 in wheat 不是一个完美的暗示吗？ E 为什么要补全谓语呢？ 是因为不补足，wheat 会有与 protein higher in quality 相比较之嫌吗？ -------------------------------------------------------------------------------------------------------------- 说到指代，在来一题：
103. Students in the metropolitan school district lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming ever more dependent on information-based industries. (A) lack math skills to such a large degree as to make it difficult to absorb them into a city economy becoming (B) lack math skills to a large enough degree that they will be difficult to absorb into a city's economy that becomes (C) lack of math skills is so large as to be difficult to absorb them into a city's economy that becomes (D) are lacking so much in math skills as to be difficult to absorb into a city's economy becoming (E) are so lacking in math skills that it will be difficult to absorb them into a city economy becoming
answer is E but look at OG explanation about C: C is ungrammatical because it uses lack as a noun rather than as a verb: the phrase beginning Students... becomes a dangling element, and them refers illogically to skills rather than students. 我认为 them 的指代不能算错，因为 根据逻辑意识，可推出 them 指代 students rather than skills. 只有当两个代词出现在一个桔子中时，才有指代要一致之说呀！望指正！
