Your family doctor can help your daughter set realistic goals for body mass index and weight based on her personal weight history and overall health.
您的家庭医生可以根据您女儿过去的体重情况和总体健康状况，帮助您女儿设定现实的体重指数和体重目标。
Note that the result set manipulation method works on a 1-based index, unlike the 0-base index of EcmaScript arrays.
请注意，与ecmascript数组基于0的索引不同，结果集的操作方法在基于1的索引上工作。
The position() function returns the one-based index of the node within the node set.
position() 函数返回节点集中节点的基于 1 的索引。
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