试题详情
- 单项选择题 You are developing an application to perform mathematical calculations. You develop a class named CalculationValues.You write a procedure named PerformCalculation that operates on an instance of the class.You need to ensure that the user interface of the application continues to respond while calculations are being performed.You need to write a code segment that calls the PerformCalculation procedure to achieve this goal.Which code segment should you use？（）
A、A
B、B
C、C
D、D
- D
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