问题描述：
Now that you like portable computer so much ,why not buy ___that expensive a ___one
Now that you like portable computer so much ,why not buy ___one A that expensive a B a such cheap C that an expensive D so a cheap 但是为啥呢?
Now that you like portable computer so much ,why not buy ___one A that expensive a B a such cheap C that an expensive D so a cheap 但是为啥呢?
问题解答：
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