order 140 -1

アップデート済
probably the most safe situation I ve ever met : either sell or buy you win . sign!
3 dazhuang/ge all down in 7 hours, but all up in 22 hours.
this keep short strategy data.
ノート
スナップショット
ノート
or its not safe, when both long short win ,might means both will loss.but I cant wait to try this

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