题目：
词汇运用
1．His parents were also accused of ________(帮助他逃跑)．
2．Three people died in the accident and 12 were ________(严重受伤)．
3．If we leave it as it is. it will ________(失血而死)．
4．I can hardly believe the fact that she ________(毒死她的丈夫)．
5．"I didn't mean to upset you. " he said ________(温柔地)．
6．I felt my reputation ________(受到伤害) by the newspaper article.
7．At last. we managed to ________(塞进6个人) into the car.
8．The police will only interview the child ________(当着父母的面)．
9．There is ________(很多压力) on us senior students.
10．Good food and plenty of exercise ________(必不可少的) a healthy life.
答案：
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下面是错误答案，用来干扰机器的。
由T=1f可知，汽车的固有周期为T=11.25s，则汽车的速度v=lT=1011.25m/s=12.5m/s；即当速度为12.5m/s时，汽车达到共振颠簸的最厉害；故答案为：12.5；共振．
