I offered my _____ Pat _____ winning the Sports. [ ]A. congratulation to; on B. congratulations to;

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• 下图分别表示青蛙发育过程中的四个阶段（）①②③④A．①②③④B．②③④①C．②③①④D．④②①③-八年级生物
• They will do all they can _____ the game. [ ]A. to compete inB. compete in C. to compete D. in compe
• 短文改错。假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的一篇作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：-高一英语
• 21st Century is _____ a newspaper. Many students improve their English by reading it. [ ]A. over B.
• 大鲵是世界上现存个体最大的两栖动物，由此可知大鲵的生殖和发育方式是（）A．卵生、体外受精、变态发育B．卵生、体内受精、变态发育C．卵生、有性生殖、无变态发育D．胎生、有性生-八年级生物
• 青蛙的生殖与发育过程在中进行，要经历受精卵、、幼蛙、成蛙四个时期．-八年级生物
• My English teacher has given me so much help that I really want to do something for him _____. [ ]A.
• I'm very happy that I didn't fail my Maths test ______. In fact I got one of the top score
• ______ hearing his father is dead,he feels very sad. [ ]A. AtB. In C. UponD. To -高一英语
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• 下列对青蛙生活习性和生殖发育特点的描述中，不正确的是A．雄蛙和雌蛙的抱对有利于提高卵的受精率B．雄蛙的鸣叫是一种求偶行为C．青蛙既能生活在水中，又能生活在陆地上，所以它-八年级生物
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• 你见过青蛙吗?青蛙的发育过程包括四个阶段，顺序是①受精卵②成蛙③蝌蚪④幼蛙A．①④③②B．①③④②C．①②③④D．①③②④-八年级生物
• Would you please tell me the quickest way ______ English well? [ ]A. to learn B. of learningC. how t
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• 下列动物中，在其一生中的不同阶段具有不同的呼吸器官的是（）。A．哺乳动物B．两栖类C．鱼类D．鸟类-八年级生物
• “黄梅时节家家雨，青草池塘处处蛙”，蛙的生殖与发育过程中，不会发生的是A．雄蛙呜叫B．雌雄抱对C．育雏行为D．变态发育-八年级生物
• _____this term, we will have learned more than 2,000 words. [ ]A. At the end B. At the end of C. By
• 对以下生物的发育过程表述错误的是()A．蚂蚁：受精卵→幼虫→蛹→成虫B．青蛙：受精卵→幼蛙→蝌蚪→成蛙C．鸟类：受精卵→雏鸟→成鸟D．人类：受精卵→胚胎→胎儿→婴儿→成人-八年级生物
• 下图所示为青蛙的发育过程，回答下列问题⑴青蛙一般生活在_________的环境中，它的体色大多是_________。⑵青蛙的发育起点是［］_________，经过_________阶段最后发育成___
• —Who is the man _____here?— Mr. Black. [ ]A. in the charge B. under the charge C. in charge D. in ch
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• 下列哪种生物，幼年与成年的呼吸器官是不同的A．章鱼B．甲鱼C．娃娃鱼D．鲸鱼-八年级生物
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• “鸡生蛋，蛋生鸡。先有鸡还是先有蛋？”这个古老的问题难住了许多科学家。下列动物不是产卵繁殖，而是胎生动物的是A．丹顶鹤B．蝗虫C．蝮蛇D．梅花鹿-八年级生物
• 观察下面的青蛙发育过程图，回答下列问题：⑴从图中的发育过程看，青蛙的发育属于____________发育。(2)青蛙的精子和卵细胞在_________中结合，形成受精卵，完成受精作用，这种-八年级生物
• 青蛙的个体发育过程是（）A受精卵→蝌蚪→成蛙B受精卵→幼蛙→蝌蚪→成蛙C受精卵→幼蛙→成蛙D受精卵→蝌蚪→幼蛙→成蛙-八年级生物
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• 下图为青蛙的生殖发育过程图，据图回答问题：（1）②是青蛙的幼体，用呼吸。（2）④时期的青蛙用呼吸，辅助呼吸。（3）按青蛙的发育过程用序号排序：。（4）从图中可看出青蛙的幼体和成体-八年级生物
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• A clock must _____ keeps good time. [ ]A. in addition B. in return C. above all D. as well -高一英语
• 同青蛙一样，其他两栖动物的生殖和幼体发育必须在________中进行，幼体要经过___________发育才能上陆生活。-八年级生物
• 表1是某校生物课外科技小组人工孵化蛙卵的实验方案记录表（用同样大小的容器，装等量的水，孵化时间相同）。请回答：表1人工孵化蛙卵的实验记录项目组别水源水量/mL水温/℃蛙卵数-八年级生物
• 下列有关生物的生殖和发育的说法中，正确的是A．细菌通过芽孢繁殖B．植物组织培养和试管婴儿技术都属于无性繁殖C．鸡卵的卵黄表面有一盘状小白点，是胚盘，里面含有细胞核D．人的-九年级生物
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• 两栖动物不能成为完全适应于陆地生活的主要原因是A．体温不恒定B．心脏结构简单C．肺不发达D．生殖发育离不开水-八年级生物
• This box is so heavy that he cannot lift it. ______, he is only a ten-year-old child.[ ]A. In all B.