单选题What is the Flush Input Buffer setting used for in the Input tab of the Menu step?（）Ato release memory held by the prompt variable Bto clear the value of the menu choice before the prompt is played Cto prevent the previous value from being used again on the menu choice Dto prevent the caller from entering a menu choice before the prompt has played
单选题
What is the Flush Input Buffer setting used for in the Input tab of the Menu step?（）
A
to release memory held by the prompt variable
B
to clear the value of the menu choice before the prompt is played
C
to prevent the previous value from being used again on the menu choice
D
to prevent the caller from entering a menu choice before the prompt has played
参考解析
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