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发达国家一般以设备寿命75%的时间作为设备租赁的最低期限。()
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若已知某网站4月份平均员工人数为84人，5月份平均员工人数为72人，6月份平均员工人数为84人，7月份平均员工人数为96人，则二季度该网站的月平均员工人数为()。
The Browns are the Smiths neighbour (邻居). Mr. Brown's name is John. But when his neighbours talk about him. they call him "Mr. Going to do". Do you know why？ Mr. Brown always says he is going to do something. but he never does it.
Every Saturday Mr. Brown goes to the Smiths' back door lind talks to Mr. Smith. He always says he is going to do something.
"I'm going to clean my house today. He says. or "I'm going to was my carton tomorrow. " or 'These tees in front of my house are too big. I'm going to cut them down next week. " But Mr. Smith knows his neighbour isn't going Io do some things.
Ms. Smith often says to his only child Dick. "Are you going to do something？ Then do ill. Don't become another Mr Golng-to-do."
Mr. Brown and Mr. Smith are ______
Robert's English teacher said he was a clever boy.
哌库溴铵(Pipeeuronium Bromide)
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