测量首先要有一个公认的标准作为比较大小的依据这个标准叫做__其次要有合适的测量__比如长度测量要选用__

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• 测量首先要有一个公认的标准作为比较大小的依据这个标准叫做__其次要有合适的测量__比如长度测量要选用__
• 1.测量的目的是什么?为了科学的测量物理量,就需要有一个公认的标准作为比较大小的依据,这个标准叫做_________
• 英语翻译1 the tomato soon made its way across europe,but the english were wary of it.2 but they enjoyed taking mechanical things apsrt tosee how they worked.3 you kept me on the straight path,one i think i still walk.4 you were working at the school and i often managed to get sent outside class for something.5 your chiding was gentle,but right to the point.6 but you were never too busy to help with a problem,or just give ahand.
• 初中英语完形填空…………急In China,people believe cranes bring good l______ to them.This is mainly because they have an elegant（优雅的） look.They are t_____,with long necks,legs and beaks.When a crane f____,its two legs become straight and reach back,while its long neck reaches forward.There are fifteen kinds of cranes in the world.The m_____precious(珍贵的)is the red-crowned crane.It is one of the world's largest birds.Its f_____ are white and it has a red circular