“世界上最遥远的距离是，我们俩一起出门，你去买‘苹果’五代，我去买五袋苹果。”要解决这一搞笑微博所折射的贫富差距问题，最根本的是要（    ）

历史是可以求真的，因为   (      )

①历史记载的客观性是存在的 ②人类认识能力的提高，事业的开阔 ③研究方法的多样化④技术手段的不断进步

如图所示，飞机空中加油时，受油机与加油机以同样速度向同一方向水平飞行，下列说法正确的是（　　）

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    The Dragon Boat Festival is one of the most significant traditional festivals. It____(celebrate) on the fifth month according to the Chinese calendar.

    The festival is said to be____honour of Qu Yuan, a great poet who tried all his best to help his own country but failed and committed suicide by drowning himself in Miluo River. The folks respected and loved him so much____they threw zongzi into the river____(prevent) fish from eating his body. Later it became a custom for people to eat zongzi and watch dragon boat races on that day.

    To advance and enrich the fine cultural heritage of the nation, the Dragon Boat Festival has been an____(office) public holiday in our country since 2008.