□演练题目人生的变数很多,没有人能承诺我们的一生永远是晴天;没有人能预知草莽中是否潜藏毒蛇猛兽;没有人能勾勒出生命的风刀霜剑……然而,外界虽不能把握,行动却可以产生力量。这力量的源泉就来自坚强的信念。真正的信念永远是不可战胜的。当遇到挫折、陷入困境,只要心头有一个坚定的信 □ Exercises There are many variables in life. No one can promise that our lives will always be sunny. No one can predict whether hidden beasts and beasts are hidden in grasshoppers. No one can outline the sword of life. But the outside world cannot grasp it. Action can generate power. The source of this power comes from strong beliefs. True faith is always unbeatable. When faced with setbacks and troubles, as long as the heart has a firm letter