单项选择题

How many generators does the shuttle carry

A．One.
B．Two.
C．Three.
D．Four.
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单项选择题
Why do other European countries criticize Ireland
A．They worry that the Irish Republic’s budget plan will undermine the stability of European Unions.
B．EU countries fear that Irish Republic’s finance plan will cause inflation.
C．Other countries will have to cut taxes.
D．Other EU countries must increase government spending, too.
单项选择题
Why did NASA decide to bring the shuttle home earlier
A．The laboratory was closed.
B．The generator was turned off.
C．The power generator might explode.
D．Electricity was going to run out.
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