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單項(xiàng)選擇題

Today there are （）computers in our homes and offices than there are people who live and work in them.

A.less
B.more
C.little
D.lotsof

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單項(xiàng)選擇題

Very long, complex expressions in program are difficult to write correctly and difficult to（）.

A.defend
B.detect
C.default
D.debug

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