发展最早是一个()
A.社会学概念
B.经济学概念
C.政治学概念
D.生物学概念
参考答案:D
—What can we do to help others?
—We can ______ a food bank to help hungry people.
A.put up
B.set up
C.pick up
D.show up
药材的原植物属豆科的是()
A.地肤子
B.沙苑子
C.山茱萸
D.豆蔻
E.槟榔