x=____时,式子3-2x2与2-x3互为相反数.
我国农业在取得巨大成就的同时,也面临人口、耕地、环境等问题的严峻挑战。你认为我国农业今后发展的方向应是( )
— Would you like to go shopping with me now?
— Sorry, I have to finish my homework before supper.