The oldest university in Ireland is（）.

单项选择题Ireland is one of the leading exporters of（）in Europe.

A.coal and iron ore
B.silver and gold
C.copper and aluminum
D.lead and zinc

单项选择题Industrial output has grown by an average of（）annually since tariff barriers were eliminated in 1977.

A.3%
B.5%
C.8%
D.10%

单项选择题Sine the 1960s,（）has become the mainstay of the Irish economy.

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

单项选择题In Ireland the agricultural enterprise producing the most income is（）.

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

单项选择题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