与森林生态系统相比，农田生态系统的下列哪种生产力指标与总生产力的比值相对较高（）
A、初级总生产力D
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Thefurnitureinherbedroomisquitedifferentfrom________inthelivingroom.
句子写作：Thepianoplayerbegantosingloudly.
Americanseat______vegetablesperpersontodayastheydidin1910.
Jennycomplainedthatthehospital________hertoomuchforthetreatment.
Ittookmeamonthtogetrid_______thecough.
