总和生育率是按照某一年度的妇女生育水平，计算每个妇女度过其整个生育期可能生育的子女数。下图表示1950—1996年我国总和生育率变化情况，读图回答下列问题。

李时珍完成《本草纲目》这部巨著的过程中，主要运用的方法是（　　）

    Most visitors to Qindao will surely find a kind of special food in Shandong.It is very 1   and delicious.It is2pancakes.It's a traditional food in Shandong.It is popular with the local people.

    When we talk about pancakes in Shandong，there is a love3about them.In the past，a boy was poor，but studied hard.His girlfriend's parents didn't want the girl to4him.They didn't provide him with food.The clever girl made some pancakes just like paper and sent them to him.The boy ate these pancakes，went on studying hard and succeeded later.

    5you can find the pancakes in some big restaurants，you'd better have a try in the small 6.They are able to make7pancakes of the Shandong taste.

    Some pancakes are made 8flour(面粉)from the wheat(小麦).When they are9  on the hot pan(平底锅)，they are more delicious to eat.

    If you want to take some pancakes back to your friends and relatives，you can find some packed pancakes.They are made by some big10factories in some villages around Jinan.

阅读下文，回答相关问题。
       ①不多久，松柏林早在船后了，船行也并不慢，但周围的黑暗只是浓，可知已经到了深夜。他们一面议论着戏子，或骂，或笑，一面加紧的摇船。这一次船头的激水声更其响亮了，（A）那航船，就像一条大白鱼背着一群孩子在浪花里蹿，连夜渔的几个老渔父，也停了艇子看着喝采起来。
       ②离平桥村还有一里模样，船行却慢了，摇船的都说很疲乏，因为太用力，而且许久没有东西吃。这回想出来的是桂生，说是罗汉豆正旺相，柴火又现成，我们可以偷一点来煮吃。大家都赞成，立刻近岸停了船；岸上的田里，乌油油的都是结实的罗汉豆。
       ③“阿阿，阿发，这边是你家的，这边是老六一家的，我们偷那一边的呢？”双喜先跳下去了，在岸上说。
       ④我们也都跳上岸。阿发一面跳，一面说道，“且慢，让我来看一看罢，”(B)他于是往来的摸了一回，直起身来说道，“偷我们的罢，我们的大得多呢。”一声答应，大家便散开在阿发家的豆田里，各摘了一大捧，抛入船舱中。双喜以为再多偷，倘给阿发的娘知道是要哭骂的，于是各人便到六一公公的田里又各偷了一大捧。