This question is confusing because the verb "derive" comes before the plural subject, "both the northern and the southern Indian alphabets."
To understand how this works, take a simple example in which the subject comes first: "English and French both derive from Latin, which Dave studied in high school." It's easy enough to see that "English and French" is the subject and "derive" is the verb.
However, I could also have written the sentence as, "In high school, Dave studied Latin, from which derive both English and French." Sounds a little weird, but "English and French" is still the subject, it just happens to come after the verb. The sentence still has the same meaning, and the subject "English and French" still does the action in the sentence ("derive from Latin"). All we did was switch the order around a bit.
Same issue in (C). If the question writer had wanted to make life easy for you, she could have written, "Both the northern and the southern India alphabet derive from the Aramaic script," in which case it would be easy to see that "the northern and the southern India alphabet" serves as the subject. Instead, we have "...the Aramaic script from which derive both the northern and the southern India alphabets." Again, "the northern and the southern India alphabets" is the subject, but this time it follows the verb, so it's tougher to recognize.
作者however後面那句是重點
many workers who lose their jobs to automation will need government assistance to survive
在說他們真的需要這些補貼
而a選項恰好在說 他們真的沒辦法找到工作 所以真的需要補貼
一開始看選項會覺得說 好像沒有甚麼結論句或是可以著力的點
是因為看錯重點ㄌ
首先，题目是要找证明S学校筹款成功率高，但不代表他们做得好，实际是削弱
因为捐过款的人更容易捐款，如果款项大多来自于【新被说服】的donator才=做得好，款项大都来自于旧donator=不好
A. 筹款人联系新donator的成功率和其他大学一样，那么证明他们并没有做得更好 √
C. 主要的款项来自于【没有联系过的】旧donator，那么和工作做得怎样 ×
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主语中除非是插入语有两个逗号，不然不能用逗号隔开