On the basis of the autonomous differential equations model,the Regression analysis,and the optimization method,a food system model is propod to rebalance the human-influenced ecosystem.At first,bas
词汇练习精选示例：1.The worker’s payment should be in ______ to the work they have done.A. cooperation B. connection C. proportion D. quantity2.I feel immediate sympathy for the woman who was
职位英语对照1.甲板部 Deck department 船长 Captain(Master) 大副 Chief officer 二副 Second officer 三副 Third office 驾助 Assistant officer 见习驾驶员 Cadet 管事 Purr 报务员 Radio office 水手长 Boatswain(Bosun) 一水、舵工 Able bodied sai
