SAT官方每日一题：2011年10月23日

　　为了方便广大考生更好的复习，和谐英语网综合整理了SAT官方每日一题，以供各位考生考试复习参考,希望对考生复习有所帮助。愿大家都能取得好成绩，更多有关留学考试的资讯与辅导资料敬请关注和谐英语网留学考试频道。

　　2011年10月23日

　　考试类型:Critical Reading > Sentence Completions

　　Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole. 

　　When, in 1864, a factory established by Alfred Nobel to manufacture nitroglycerin blew up, the scientist discovered that the explosive was as ------- as it was powerful, ------- to detonate without warning.