根据此项排名,哥斯达黎加是全球绿化率和幸福指数最高的国家,多米尼加共和国和牙买加分列其后。 该调查由智囊机构新经济基金会发起。
Costa Rica is the greenest and happiest country on the planet, according to the rankings developed by think tank the New Economics Foundation, followed by the Dominican Republic and Jamaica.
雪上加霜的是,央行宣布消费者信心指数已低于平均水平。
To make matters worse, the bank said, consumer confidence in the country has fallen to "below-average levels".
按每年新产品导入数的变化状况,分均匀分布、线性增长、指数增长三种情况进行模拟迭加研究。
According to the varying situation of the quantity of introduced products, we research it by uniform distribution, linear growth and exponential growth.
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