李时珍是我国16世纪卓越的医学家、药学家，为了纠正古书中关于穿山甲捕食蚂蚁的错误说法，特地跑到山里，认真察看和记录穿山甲的生活习性。主要采用下列哪种方法进行研究()A-七年级生物

更多内容推荐

• Yang Liwei is the first man ________ the moon.[ ]A. to stepB. stepC. steppingD. steps-八年级英语
• My mother often tells me _______ my classmates when they need.[ ]A. helpB. to helpC. helpingD. helps
• The idea _________ useless.[ ]A. seemed to beB. seemed toC. seemed beD. seemed be to-八年级英语
• My hobby is ______ old coins. [ ]A. to collect B. collected C. collectD. collects-八年级英语
• 选择方框中的单词，并用其正确形式填空。ride, run, meet, happen, get,follow, buy,cut, land, jump1. The thief wanted _____
• 巴斯德鹅颈瓶实验成功的关键在于（）A选择好的肉汤作材料B实验态度认真C实验室条件好D设计的鹅颈瓶阻挡了细菌进入肉汤-八年级生物
• I am surprised that you won't go to college. [ ]A. to hearingB. hearingC. hearD. to hear-八年级英语
• 下列①-⑤为实验过程中的几个相关步骤，在实践操作中其排列次序正确的选项是()①发现并提出问题②设计和实施实验方案③分析实验现象④得出结论⑤作出假设A．①→②→③→④→⑤B．②→①→③→⑤→④C．①-七
• My mother wants me ______ milk every day. [ ]A. drink B. drinks C. drinking D. to drink. -八年级英语
• 句型转换。1. The policeman said,"Don't play football in the street,children!"(同义句转换) The p
• —I didn't see you at the meeting.—I had a bad cold. The doctor asked me _____in bed.[ ]A. stayi
• Aunt Li often asks her son _____too much meat,it's bad for his health.[ ]A. don't eatB. no
• 对调查的生物，可以有多种归类方法，如可以按形态结构，将生物归为、、和三大类。按生活环境可以分为生物和生物等。-七年级生物
• I like football very much.I want a football player. [ ]A.isB.amC.to beD.be-八年级英语
• I invited him ___ our school last year. [ ]A. to visit B. visitedC. visitingD. visits-八年级英语
• 爷爷运用生物科学技术，培育出举世闻名的杂交稻，大大提高了水稻的产量。-七年级生物
• 对实验数据进行处理时，一般情况下，下列哪种计算取值的方法是科学？（）A．取总数值B．取平均值C．取最大值D．取最小值-七年级生物
• The teacher asked Mary _____to his office.[ ]A. go B. to goC. goingD. went-八年级英语
• 某同学在调查活动结束后，将有关的生物分成了农作物、家禽、家畜、宠物等。他所采用的分类依据是[]A．形态结构B．生活环境C．生物用途D．大小多少-七年级生物
• 一组对照实验中变量应该是()A．1个B．2个C．3个D．多个-七年级生物
• —Excuse me,could you tell me howto Beijing Zoo?—Well,you may take Bus No.27.[ ]A. getB. getsC. getti
• On her way home Lucy saw a thief ______ in a shop. She stopped_____ 110 at once. [ ]A.steal; call B.
• My mother often encourages me _____ all the subjects. [ ]A. learnB. learningC. to learnD. learned-八年
• 下图是某同学在“调查我们身边的生物”这一活动过程中，所拍摄的五幅照片。（1）根据照片所提供的信息判断：该同学是在什么样的地域环境中开展调查的（如海洋、淡水水域、陆地等）？-七年级生物
• 在探究“光对鼠妇生活的影响”这一实验过程中，实验小组的同学记录如下表所示，你认为依据数据所得的结论应该是()环境实验次数不同环境明亮环境阴暗环境第一次68第二次311第三-七年级生物
• 探究的过程包括：提出问题、制定计划、实施计划、和表达和交流。-七年级生物
• 做调查记录时，不正确的一项是[]A．记录生物的数量B．记录生物的名称C．记录生物的生活特点D．不记录枯枝落叶里的小生物-七年级生物
• It is necessary for us_________English well.[ ]A. study B. studyingC. to studyD. studied-九年级英语
• Should I be allowed__________my own decisions?[ ]A. makeB. Making C. to makeD. made-九年级英语
• 用所给词的适当形式填空。1.They are trying to do something _____ (help) the old.2.If at first you don't ____
• It's not right for you his homework. [ ]A. copy B. copied C. to copying D. to copy-八年级英语
• It is very exciting ______ a football match. [ ]A. watchB. watching C. to watch D. watches -七年级英语
• Take care_____ again. [ ]A. to not be lateB. not to be late C. to be late D. to late-八年级英语
• 香蕉在南方能正常生长，而在北方不能生长。与此相关的主要影响因素是A．水分B．土壤C．光照D．温度-七年级生物
• Do you think it is difficult? [ ]A. study English well B. studies English well C. studying English w
• 小明为了解“温度对霉菌生活的影响”进行了探究实验，你认为下列选项不能作为该实验对照组的应该是()A．高温和潮湿B．高温和低温C．干燥和潮湿D．光亮和黑暗-七年级生物
• We are so poor that we can't afforda new car.[ ]A. buyingB. buysC. buyD. to buy-八年级英语
• 用所给词的适当形式填空。1. Don't forget _______ (take) away what you____ (bring) there.2. Yao Ming is a fam
• Mother asks me_______computer games before finishing my homework.[ ]A. not play B. to playC. not to
• I'd like you for a picnic with us.[ ]A.goB.to goC.goingD.went-八年级英语
• 下列动物中，属于杂食性动物的是A．马B．狗C．羊D．老虎-七年级生物
• James, I'm too tired. Let's stop.a rest.[ ]A havingB. haveC. to havingD. to have-八年级英语
• My grandfather wants around the world because he enjoys new places.[ ]A. travelling ; seeing B. to t
• My father agreedpay for the coat.[ ]A. onB. withC. /D. to-八年级英语
• 进行探究实验时，同学们首先要明确提出实验的假设，其主要目的是()A．得出实验结论B．明确实验方向C．确定实验材料D．延长实验过程-七年级生物
• —Your spoken English is much better.—Thank you. My teacher often asks us _______English as ______as
• —Do you think it is important for us __ English?—Yes, I think so.[ ]A. learn B. to learn C. learns D
• I long________you soon.[ ]A. seeingB. toseeC. seeD. will see-九年级英语
• 这些是小东在校园调查时记录的生物名称：①狗尾草②红蜘蛛③松树④蚯蚓⑤大红花⑥柳树⑦蚂蚁⑧蚊子⑨蜻蜓⑩蟋蟀．请你帮他将以上生物分类，并说明分类的依据．-七年级生物
• 在“调查公园的生物”活动中，你认为哪位同学的做法是正确的（）A．甲发现一只老鼠，既害怕又觉得很恶心，就没有记录B．乙发现几株从未见过的小花，将它们拔起，准备带回学校去问老-生物