摘要： Day1 1768. Merge Strings Alternately You are given two strings word1 and word2. Merge the strings by adding letters in alternating order, starting wit 阅读全文

摘要： \[ 已知\lim_{x \to 0} \frac{e^{x}f(x)+sinx }{x^{2} } =1,求\lim_{x \to 0} \frac{f(x)+sinx }{1- cos^{3}x } \] 阅读全文

摘要： 英文句子： An ①aggressive young dancer learned ②ballet but slipped on his ③butt while trying to ④capture the beauty inside a small ⑤chapel, where a guitari 阅读全文

摘要： "The proposal① to promote② the policy③ of eliminating superfluous④ rules has been accepted, but the political⑤ profile⑥ of the issue remains limited⑦, 阅读全文

摘要： "While the gospel① of the new law was widely accepted, the patron② of the movement had a temper③ that could sometimes bewilder④ those who didn't compl 阅读全文