①由“若a,b,c∈R,则(ab)c=a(bc)”类比“若a、b、c为三个向量,则(a·b)c=a(b·c)”; ②在数列{a n }中,a 1 =0,a n +1 =2a n +2,猜想a n =2 n -2; ③在平面内“三角形的两边之和大于第三边”类比在空间中“四面体的任意三个面的面积之和大于第四个面的面积”; 上述三个推理中,正确的个数为( ) A.0 B.1 C.2 D.3
【简答题】According to the second paragraph, Jack Lindsay firmly believes in______. [A]the gloomy destiny of his own country [B]the function of literature as a weapon [C]his responsibility as an English man [D]...