【历史-选修2: 20世纪的战争与和平】

材料：江桥，全称为嫩江哈拉尔葛桥，是从吉林通往齐齐哈尔的咽喉，日军欲占黑龙江，必先夺取此桥。1931年10月13日，在日军支持下，伪军1.7 万人入侵黑龙江省抵达江桥附近，遭到黑龙江省守军徐宝珍卫队团的坚决阻击。10月20日，马占山正式宣布就任黑龙江省主席，随后发表《抵抗宣言》，明确表示：“当此国家多难之秋，三省已亡其二，稍有人心者，其不卧薪尝胆，势救危亡……尔后凡侵入我江省境者，誓必决一死战。”在马占山领导江桥枕战过程中，全国人民乃至海外华侨给予了高度赞扬和大力支持。江桥抗战共持续38天，马占山率领军士毙伤敌万余人，江桥守军也付出巨大牺牲。

一一摘编自李琴《中国抗战史上光辉的一页——试析江桥抗战的地位和作用》

2010年4月，墨西哥湾发生了严重的石油泄漏事件，若油区内的鱼类死亡，原因可能是（  ）
①油膜覆盖海面，海水含氧量减少
②缺少阳光，水生植物无法进行光合作用，鱼类缺乏饵料 
③海水污染 
④油膜太厚，鱼类难以游动

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    My name is Linda. Amy is my best friend. She 1 long straight black hair and two big black eyes. 2 nose is very small. She is beautiful.

    She is 3, too. Amy likes animals, so she 4 helps her grandparents take care of (照顾) their cat and dog. She is also a 5 student in my class. She studies very hard 6 she often helps other students. After school, we often play together. We 7 swimming very much, so summer is our favorite season.

    She is not the only 8 in her family. She has a sister of only three years old. Her name is Lucy. Lucy is a cute girl. She 9 me sister the first time. When we go to the park, she wants to go to the 10, too. When we read at home, she wants to read, too. How funny!