题干
根据句意及首字母提示完成单词
（1）My father usually c____ my homework at home.
（2）____, Tom cleans the classroom and goes home.
（3）You can c____ “save”, and then write a name for it.
（4）Can you see the train t____ on the wall?
（5）I often go to Beijing by t____.
答案(点此获取答案解析）
checks,Finally,click,timetable,train
，则要使产品达到市场要求至少应过滤