美丽的十一中校园鲜花怒放，蝶绕蜂吟，据资料蝴蝶飞行时每秒振翅5～6次,蜜蜂每秒振翅300～400次,当它们都从你身后飞过时,凭你的听觉（）

森林古猿变成人，与以下哪种因素关系最密切（    ）

下列句子中加下划线词语使用不正确的一项是（  ）

    ____crowd of more than 22,000 people gathered near Las Vegas' famous Mandalay Bay Hotel____the Route 91 Harvest Festival. Without____(expect), from the hotel's 32^nd floor, a gunman opened fire on the people below,____ (kill)59 people and at least 500 injured. It was the most____(dead)shooting in US history. President Donald Trump described____as “an act of pure evil”. He ordered US flags to be____(fly)at half-staff to honor those____died. “In moments of tragedy and horror, America comes together as one. And it always ____(have),” Trump said____(Politician) around the world offered their support for the United States.