这些练习题每一道要花一两分钟做完。

Each of these exercises takes one or two minutes to do.

《柯林斯英汉双解大词典》

为了使用户负载与正确的尺度相关，您需要理解应用程序是如何利用后端资源的，这实际上是一道数学练习题。

Correlating the user load to the appropriate metric requires understanding how the application is utilizing backend resources, and becomes an exercise in mathematics.

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