Which similar challenge did china and japan face following the sino-japanese war?

What has been a long term effect on the panama canal

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.

Someone who accepted the beliefs of social darwinism would have also agreed with which of these statements?