<h1>R  5</h1>

        µĶߡƶԴ˶ȻеŶӺüСʱǻ˴Ǯ򵽣IJǾϲı飬һжֵá

        ĺ͸⣬Ѧû͹ʴˡ

        ŮģԊŮϲʲô����һ�����ĸ׽Ҫʲôһ�����Ѧĵȴ͵һ

        ŮĸŮʶ𣿡֮ǰУ˴˽õͬѧҲԼ棬ĵûĸŮǰǶЩŮûģҪӣͺһû뵽ȻԶ

        ͬѧûԭƽЩ˵����֮ǰѧ״ԪСȻȥˣǸŮģΣķڷ

        ˵۾תͷֻ˲мһˣŮ�����ôôأһˊüѧȥ˵ҽ̹������

        ÿרһѦƽ߶ʱһϴŲ˼ЦݣȴԽԽֻ̻ؼңһһ䡣

        Һģ˭˭ҪΣҪݲУҺû涨Ҳ̫ѡѡҪƯ󷽵ģߵ˵֡ŮϲȫûѦһЩ˺ÿƷϾ˳УԼӦòֻһΡ

        ˵УϰȴòӦѦͼͷ֪ʲô

        ôˣ

        Ƽ̧ͷĴֱĿ�����˵һ仰

        ĪĻţIJڵߣǰǰҫѧ״ƣžǰ˫ԼӰеܵ⣬ڱȴеЩꡣ

        ﲻ˵æ˵һԼ򡣡

        Ҳ֪Լôе㲻ԣϾֹ֮ϵȻ˵ֻ˴ҪǴ飬һ÷飬ûҪ̸Լϲ͡

        ϲŮdzţޣ毺õ֡

        ŮͬѧȫĿζѦͬ꣬زӲDZţƷƣҲ͵ģСұѦ̾ͱȥ

        ڷѧǿȻӮԼijױ۷ˣԼѧҲе˼չ׷

        صԼѦһҪæһҲǰʾȻ˵ûϵѦĹϵ׷ʧҲһ·οھӣСһ𳤴ֽ꣬

        þѦ˼ǰһ�����شߣ׷ɹ˵ףҪæҲû⣬ǡ

        뵽ʱIJʹ죬ĹΪ֪Ѧµľ

        ԲҲDz㣬ֻҪʲôѡѦȻ����Ǹ

        ǾͺãǵҪݣԣ����ݺˣ֮Ӧû͡Ѧò԰׵Ʒꡣ

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        صңѦʧǵ߽䣬ʱޣҲ̲ס˵ʹ޳ޱסԼҧֱԷ

        ʵһֱ֪Լ䲻ġ

        Сúǿ˧СѧͳյŮ飬ͬѧͱǿȴ˺üʮ飬ȻûӵȫԹתһûȫﻹǰԿڴġ