Nghĩa của câu tri thức của chúng ta căn cứ trên kinh nghiệm. lấy ví dụ

fdfwefegrgtghth

explanation:

i would say b. research typically uses a variety of sources

protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.

answer; the sound of a train whistle makes a woman think of an old friend; //

the smell of grass makes a by feel that spring is the best; (apex);