_四川成人高考

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• A、At

• B、Before

• C、After

• D、Since

Directions:In each of the following groups of words,there are four underlined letters or let-ter combinations marked A,B,C and D.Compare the underlined parts and iden-tdtify the one that is different from the others in pronunciation.Mark your answer by blackening the corresponding letter on the Answer Sheet.

• A、pension

• B、mission
• C、tension
• D、revision

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