急：为什么What do you think is the most helpful invention?和what do you think I can do?语序不同

题目

急：为什么What do you think is the most helpful invention?和what do you think I can do?语序不同
What do you think is the most helpful invention 和what do you think I can do?都有插入语do you think ,为什么句子都算对,语序却不同?有没有插入语到底会不会影响语序?请真正的高手作答,

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