九难被崇祯砍了（）手臂
参考答案：左臂
Li Hua, do you know the final exam is drawing near? Time is limited, so I can't have you ________ time
like this.[ ]
A. waste
B. to waste
C. wasting
D. wasted
硝化甘油为白色油状液体，受撞击或震动很易爆炸（）
