单项选择题
以下哪种父母教养方式最适合营造开展性教育的氛围A.专制型 B.权威型 C.放任型 D.忽视型
单项选择题以下哪种父母教养方式最适合营造开展性教育的氛围
未知题型
Trade need not be the result of comparative advantage. ...
判断题Trade need not be the result of comparative advantage. Instead, it can result from increasing returns or economies of scale, that is, from a tendency of unit costs to be lower with larger output. A、正确 B、错误