diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
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 							- Technology push
 							- Market pull
 							- Universities & industry liaison
-						- Cyclical model: involves a continuous process of feedback and iteration.
-						- Open innovation: involves collaborating with external partners to develop new products or services.
+						- Simultaneous coupling: involves a continuous process of feedback and iteration.
+						- interactive: takes simultaneous coupling one step further,
 					- ### Characteristics of Innovative Companies
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