—I told you it would broke easily it was the weakest.
A:where
B:because
C:that
D:in which
中国近代思想主要经历了“师夷长技以制夷”、“中体西用”、“维新变法”、“民主共和”“民主与科学”及“马克思主义”的演进过程,这些思想反映的共同主题是( )
(x+1)4的展开式中x2的系数为
解方程
x+25%x=3.75
x=____