第二类杠杆又称为() A.平衡杠杆 B.省力杠杆 C.速度杠杆 D.静态杠杆 E.费 发布时间:2017-08-26 16:03 │ 来源:www.tikuol.com 题型:单项选择题 A1/A2型题 问题: 第二类杠杆又称为()A.平衡杠杆B.省力杠杆C.速度杠杆D.静态杠杆E.费力杠杆
题型:单项选择题 A1/A2型题 根据常识,判断下列句子对(√)错(×)。( ) 1. There are six days in a week.( ) 2. Sunday is the first day of a week.( ) 3. We often go to school from Monday to Friday.( ) 4. Mother's Day is the third Sunday in June.( ) 5. Today is Sunday. Tomorrow is Saturday. 查看答案