写出字的笔顺。
四:____ ____ ____ ____ ____
Dale used to _____to office in his car, but he is used to_____ the bus now.
如图,下列条件中,不能判断直线l1∥l2的是( )
(1)图1所示弹簧测力示数为____ N.
(2)图2所示木块长度为____ cm.
(3)图3所示体温计的示数为____ ℃.
下列式子中,代数式书写规范的是( )