MARGIN风险太大了,寒。
而且系统的确也需要与时俱进。比如说几十年以前大家用箱形系统就能赚钱,现在不行。Keep innovating.
MARGIN风险太大了,寒。
而且系统的确也需要与时俱进。比如说几十年以前大家用箱形系统就能赚钱,现在不行。Keep innovating.
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