阅读下列材料，回答问题

这是一段红军歌谣：“讲起八一历史长，南昌打响第一枪。工农士兵齐暴动，红军战士最光荣。朱德率领队伍走，进军湘南改红军。秋收暴动***，闹得湘东遍地红。井冈山上朱毛合，创建四军建奇功。”

请回答：

    求知可以改进人的天性，而实验又可以改进知识本身。人的天性犹如野生的花草，求知学习好比修剪移栽。实习尝试则检验知识本身的真伪而加以修正。

写出反义词

喜爱—____      绝望—____       可信—____

阅读短文，下列问题

 B

    A marathon is an endurance (忍耐力) race which covers 26 miles, 385 yards (42.2 km). It is a race for the strong. To run this race, one must have great endurance.

    The history of this tiring race dates back to a war. The war was between the Persian Empire and the Greeks. It was in the year 490 BC. The war took place on a plain (平原) called Marathon.

    The Greeks won. After the war, a man was chosen to announce that the Persians had been defeated (打败) in the battle. The man ran from the battlefield of Marathon to Athens. He ran at top speed without stopping to rest. When he reached Athens, he told the news and died.

    In 1896, the marathon race was included in the first modern Olympic Games in Athens. The race was to remember the runner. It was 24.85 miles (40 km), the distance that the man had been asked to run to give his news.

    All marathons today are a little longer than the one in the first modern Olympic Games. Distance was added at the 1908 O1ympid Games in London, The distance was changed to 26.22 miles to cover the ground from Windsor Castle to White City stadium, with the 2.2 miles added on so the race could finish in front of the Royal Box.