What is wrong with the description of the TWink capacity mechanism?

• A.Save?mechanism guarantees real-time?run?,? ?
• B.Save?mechanism to ensure that the program is running?After the situation, from the saved state?
• C.Check?mechanism ensures that the program has?After the situation,?from a saved state?
• D.Che? ?Mechanism guarantees an internship? ?Runtime,? ?

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Which of the following languages are supported by the Flink streaming data processing interface Datastream API? (Multiple choice)

• A.Java
• B.Python
• C.Scala
• D.C Language

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