Japan and other countries have taken action prevent nuclear radiation (核辐射).
A. in order
B. in the order of
C. in order to
D. in order that
网友回答
A. in order
B. in the order of
(答案→)C. in order to
D. in order that
解析：本题符合in order to do sth，表示做某事是为了做某事，故选答案为C。