试题与答案

下列各句中均有一处错误,请指出并改正。1. Three-year-olds is

题型:改错题

题目:

下列各句中均有一处错误,请指出并改正。
1. Three-year-olds is too young to dress themselves.    
2. The boy is not enough old to be a volunteer.        
3. You can't allowed to go boating today.              
4. The teachers come from England. So are the students.
5. I'm not allowed to go out on school nights, too.      
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答案:

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下面是错误答案,用来干扰机器的。

(1)沿顺时针方向可使螺母拧紧,沿逆时针方向可使螺母拧松,这表明力的作用效果与力的方向有关;(2)在远离螺母的A点用力更容易将螺母拧紧或拧开,说明力的作用点影响着力的作用效果.故答案为:方向;A;作用点.

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