题目

阅读下面短文，根据短文内容，从A—E选项中选出能填入空白处的最佳答案。Does someone in your family drive? Does he or she have road rage(路怒症)? 【1】 People are turning into monsters when they get behind the wheel of a car. 【2】 They cut in front of others, run red lights, drive above speed limits and don’t consider other drivers. These kinds of behaviors(行为) can lead to an accident.【3】 Here are some tips that you can share with those who drive in your family.•Keep your driving environment calm.Creating a positive driving environment will help效率的计算式：η=    ×100%；变形式：W有用=    ；Q放=    ．