OG6
In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are the organism’s trying to metabolize, or render harmless, the chemical that is irritating it.
(A) trying to metabolize, or render harmless, the chemical that is irritating it
(B) trying that it metabolize, or render harmless, the. chemical irritant
(C) attempt to try to metabolize, or render harmless, such a chemical irritant
(D) attempt to try and metabolize, or render harmless, the chemical irritating it（E）
(E) attempt to metabolize, or render harmless, the chemical irritant
！OG 说
The phrase the chemical irritant is also the most concise and precise conclusion for the sentence because it clearly refers to the dioxin mentioned earlier.（这不明白！！！the chemical irritant 怎么REFER dioxin ）呢！
SORRY 啊！我在别的人的帖子里接恢复老是发不出去 试了一个晚上了 只能发新的了 麻烦了大家了！
OGQ15
In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.
(A) mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis
(B) mood swings, perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis,
(C) between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis
(D) between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis（C）
(E) genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease
字典distinguish 有2种搭配：distinguish ... from /distinguish (between)...and...但是看了OG解释后我发现ETS 只承认 distinguish between ...and ...
OG 说：The best choice is C because it uses the idiomatically correct expression distinguishes between x and y
The other choices use distinguishes in unidiomatic constructions.
我这种感觉对吗？？
sorry 啊！
以前不知道怎么搜索到问题！才重复问问题的！SORRY
研究完以前人的帖子不明白再问！谢谢！
HOHO ！我可以发帖子了！555555！
前几天一直发不了！电脑里有毒和抽风一样！我才麻烦ＧＲＡＣＥ帮我问问题的！我换用了一个浏览器才可以的！
祈祷以后不会再出问题了！55555！可恨的病毒！
.（这不明白！！！the chemical irritant 怎么REFER dioxin ）呢！
这个不是语法的考点，完全是句子意思的理解. mm仔细读几遍就理解了.
distinguish的确有两种搭配，但是意思不一样。distinguish A from B, 意思是把A从B里面分辨出来。distinguish between A and B, 意思是把A和B之间的差异分辨出来.
互帮互助一直是CD的传统，楼上两位做的不错, hehe.
谢谢斑竹 rhod , 每次都 耐心的回我的帖子！现在我会搜索了，我保证一定把我的问题在语法区搜明白再问的
谢谢
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