18:{"metadata":[["$","title","0",{"children":"C 可单向也可双向 - 基础题库 - 信竞星球"}],["$","meta","1",{"name":"description","content":"

D 无法确定

在Scratch中，广播消息的传递是同步的还是异步的？

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D 无法确定

在Scratch中，广播消息的传递是同步的还是异步的？

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D 无法确定

在Scratch中，广播消息的传递是同步的还是异步的？

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C 可单向也可双向

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