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單項選擇題

He tried to hack（）the banking system.

A.to
B.on
C.into
D.for

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For more information, visit our（）at www.cambridge.org.

A.net
B.website
C.internet
D.network

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In order to log（）the system you have to type in your password.

A.in
B.on
C.in to
D.off to

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