下列工厂中存在投入—产出工业联系的是①纺织厂、印染厂②钢铁厂、重型机械厂③造纸厂、化纤厂④食品厂、家具厂

题干

下列工厂中存在投入—产出工业联系的是（　）
①纺织厂、印染厂
②钢铁厂、重型机械厂
③造纸厂、化纤厂
④食品厂、家具厂

A：①②

B：②③

C：③④

D：①④

上一题下一题 0.0难度选择题更新时间:2019-05-07 02:15:56

A

This summer, Mary, Tom, Alan are going to have an ideal vacation .
The followings are their plans for the coming vacation .

	Mary	Tom	Alan
Where ?	The Great Wall	Spain	Canada
When?	The first week in June	The last day of the May	June, Monday 18^th
Who ?	His parents	His best friends	His cousin
What ?	Going hiking , Going sightseeing, Visiting some famous places in Beijing, Going shopping	Going sightseeing Going shopping Going camping Watching bull(牛)-fight	Spending time in the countryside , Renting videos at night , Going fishing , Going hiking, Sleeping a lot
How long?	About one month	Only two weeks	Until September
Transportation	By plane and by bus	By boat and by plane	By plane and by train