allocates a backing store of size 1.
WTI原油涨4%，报67.8美元/桶；布伦特原油涨3.69%，报73.451美元/桶。
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return response.ok; // Body is never consumed or cancelled，更多细节参见爱思助手下载最新版本
With our product(s), we make informed bets on market fundamentals. We then use customer feedback to keep making those products better.，详情可参考heLLoword翻译官方下载