This is the first study to show how ______ to air pollution influences cognitive function in a national sample…

Question

This is the first study to show how ______ to air pollution influences cognitive function in a national sample of older men and women.

Accepted Answer

正確答案為 C。exposure to ~ 為固定用法，指「暴露於某種（有害）環境」，如 exposure to radiation / pollution，正是本句語意。

This is the first study to show how ______ to air pollution influences cognitive function in a national sample of older men and women.