一位古希腊人经过实地调查研究，在其著作中记述了希波战争的始末。他是（） A.伯里克利

Monarch butterflies（黑脉金斑蝶）are a common summer sight in the northern United States and Canada . These large orange and black insects（昆虫）brighten parks and gardens as they fly lightly among the flowers . What makes monarchs particularly interesting is that they migrate（迁飞）—all the way to California or Mexico and back . They are thought to be the only insect that does this.

Every year in the late summer monarchs begin their journey to the south. Those heading for Mexico go first for the Louisiana-Mississippi area, then fly across the Gulf of Mexico into Texas. Once in Mexico, they settle themselves in one of about fifteen places in a mountain forest filled with fir trees. Each place provides a winter home for millions of monarchs. The butterflies are so many that they often cover entire trees. When spring comes, they begin their long journey north. 

The question is often asked whether every butterfly makes the round-trip journey every year. And the answer is no. The average monarch lives about nine months. So one flying north might lay eggs in Louisiana and then die. The eggs of that generation may be found in Kentucky; the eggs of the next generation may end up in Wisconsin or Michigan. The last generation of the season, about the fourth , will make their way back to Mexico and restart the journey.

Scientists learn about monarchs’ migration by catching and making marks on the insects. By recatching a monarch with such a mark and noticing where it came from , the next scientist can get to know things like the butterfly’s age and its routing（路线）.

64. One of the places where monarchs spend the winter is       .

A. the Gulf of Mexico                 B. an area in Mississippi

C. a forest in Mexico                D. a plain in Texas

65. The routing of monarchs’ migration can be learned       .

A. by collecting their eggs in the mountains

B. by examining the marks made on them

C. by comparing their different ages

D. by counting the dead ones in the forests

66. What is the subject discussed in the passage?

A. Life and death of monarchs         B. Scientists’ interest in monarchs.

C. Winter home of monarchs.               D. Migration of monarchs.

《山西晚报》家长来信：我是一位初三学生的母亲，现在遇到一个难题，我的儿子就想当作家，上课应付，成天就是“创作”。我说：“就算当作家，也要先打好基础，再说中国有几个韩寒？”可他回答：“你怎知道我成不了下一个韩寒？我要抓紧写作，尽快成为一名作家。”这两次模考，他考得一塌糊涂。问题是他的小说也写得很幼稚。

结合材料，请你对这位初三学生相当作家的行为进行评析。

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由哪几部分组成，对喷补料有什么要求？

症状、体征发展较慢，主要表现为细菌性腹膜炎的是（）。

A.肝破裂

B.脾破裂

C.胰腺挫伤断裂

D.十二指肠破裂

E.结肠破裂

（）不是Z525立式钻床的结构组成部分。

A.横梁

B.工作台

C.变速手柄

D.主轴变速箱