设是由方程
设是由方程所确定的隐函数，求偏导数.
令，则故
Choose the closest paraphrased version after the following sentence or the italicized part.
Culture shock is caused by the anxiety that results from losing all our familiar signs and symbols of social intercourse.（）
是由方程
所确定的隐函数，求偏导数
.
，则
故
