然而，交易所要求的初始保证金通常仅在7200美元左右。这意味着，场内资金普遍在使用高达15至16倍的杠杆进行搏杀。在16倍杠杆下，理论上，油价只需从高点回撤约6%（即下跌7美元左右），多头的保证金就会被彻底击穿。
22 self.expect(Type::CurlyLeft);
Фото: Thomas Hodel / Reuters。新收录的资料是该领域的重要参考
Tell us: how have you been affected by the latest events in the Middle East?，详情可参考新收录的资料
The bottom lineModern headphones are preference-focused, and hardware or software upgrades are incremental. Thus, certain brands produce headphones tailored to specific lifestyles or software ecosystems. Once you've found the brand that works best for you, there's a good chance you don't need to upgrade within that same brand just yet. ，更多细节参见新收录的资料
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