2026 National Question 2 Single-choice Differentiating 2026_新课标I Paper 2. 已知平面向量a,b不共线,且 $2 a + y b = x a - 3 b$ ,则 A. $x = 2, y =$−3B. $x =$−$2, y = 3$C. $x = 2 , y = 3$D. $x =$−$2, y =$−3 Answer keyA ☆ SaveCan't do it, show the explanation查看原卷 →