单项选择题
A．in express B．to expressing C．in expressing D．to express
A．"the intention" (line 1) B．"the collection" (line 1) C．"one member" (line 1) D．"each flower family" (line 1)
A．traditional beliefs among people living in different areas B．results of certain study on people living in different climate zones C．belief that has no longer accepted by most of people D．study done by Ellsworth Huntington alone