找朋友，选词填空。7v,G2Y;j+[-K3O8r'^'K
突然 虽然7v,G2Y;j+[-K3O8r'^'K
1．地球上*x*d/B5h,t;q(r:g-c变得十分寒冷。7v,G2Y;j+[-K3O8r'^'K
2．5p+Q4U(z0v4f:z.h9J;U:m(h/s0e(S下起了雨，但是我们仍在上体育课。7v,G2Y;j+[-K3O8r'^'K
书籍 书本7v,G2Y;j+[-K3O8r'^'K
3．学知识不能只局限于)U;a5x1t5X0[*f3J:F+},|6C+O中的知识。7v,G2Y;j+[-K3O8r'^'K
4．2R:^6|6k:k:`是人类进步的阶梯。7v,G2Y;j+[-K3O8r'^'K