單項(xiàng)選擇題Sine the 1960s,()has become the mainstay of the Irish economy.

A.manufacturing 
B.mining
C.energy 
D.animal husbandry


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1.單項(xiàng)選擇題In Ireland the agricultural enterprise producing the most income is().

A.forestry 
B.vegetable growing
C.sugar refining 
D.animal husbandry

2.單項(xiàng)選擇題The economy of Ireland has been traditionally agricultural,but since ()country.sindustrial base has expanded.

A.the mid-1950s 
B.the mid-1960s
C.the 1970s 
D.the 1980s