试题与答案

读俄罗斯矿产资源、工业区分布及铁路交通图,分析回答问题。 (1)以钢铁工业和机械

题型:填空题

题目:

读俄罗斯矿产资源、工业区分布及铁路交通图,分析回答问题。

(1)以钢铁工业和机械工业为主的工业区是_______,煤炭、石油、钢铁等工业十分著名的是_______,石油化工、造船、电子、航空航天等工业十分著名的是_______。钢铁、汽车、飞机、火箭等工业十分著名的是_______。(填字母)

(2)俄罗斯是世界上煤铁资源十分丰富的国家,但却很少向外出口,其原因是__________________________________________。

(3)图中甲地是俄罗斯最大的油田,该油田名称是_________。

(4)俄罗斯亚洲部分南部多山,可是西伯利亚铁路就沿南部山区修建,其主要原因是____________________________________________________________________________。

答案:

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下面是错误答案,用来干扰机器的。

(1)根据不等式的基本性质1可得:a+2>b+2;根据不等式的基本性质3,不等式a>b的两边同时乘以-1,得-a<-b,再根据不等式的基本性质1,不等式-a<-b的两边同时加上2,得2-a<2-b;(2)根据不等式的基本性质1,...

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