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What are the specialties of Jiangnan's cold noodles:

1. Noodles: Jiangnan's cold noodles are usually made with thin noodles, which have a smooth texture and are perfect for summer.

2. Sauce: The sauce for cold noodles in Jiangnan is usually based on sesame sauce, with garlic, vinegar, soy sauce and other seasonings, which makes the taste hot and sour.

3. Side dishes: Jiangnan's cold noodles have a variety of side dishes, such as cucumber, bean sprouts, carrots, bean skins, seaweed and so on, which are refreshing and delicious.

4. Seasoning: Jiangnan's cold noodles often add some special seasonings, such as crushed peanuts, sesame seeds, cilantro and so on, to increase the taste and aroma.

Overall, Jiangnan's cold noodles are characterized by refreshing, good taste and rich side dishes, which are very popular in summer.