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| What is your monthly income? (£) |
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| When did you first hear some information of IPhone? |
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| Which one is your first iPhone? |
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| How do you know this product? |
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| What is your opinion about iPhone's price level? |
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| What is the main reason for you to buy it? |
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| What do you think is the biggest difference between iPhone and other smart phones? |
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| What do you think is the most important reason for iPhone's success? |
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