Returns a queue that yields tuples of the old and new values.
Vivo rarely has a presence at MWC, but this year it bucked that trend in a big way, with the reveal of its next flagship phone, the X300 Ultra, alongside an upgraded telephoto extender lens and professional camera cage. The company isn't ready to launch the handset just yet - or even reveal very many of its specs - but gave us an early look at what it's cooking up; that smartphone-sized 400mm lens is wild to behold in person. Vivo also confirmed that whenever it does arrive, it will be the first Ultra to go on sale outside China.
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李強表示，希望通過改善總供求關係，推動價格總水平走出近年的通縮陰影，使消費價格「合理溫和回升」，從而帶動經濟實現更為健康的內生循環。換言之，溫和通脹本身已被視為一種政策成功，而非需要壓制的風險。
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