下列适于抽样调查的是（）A．某班同学的业余爱好B．自己家里的收支情况C．全国青少年近视发病率D．某校教师男女比例-生物

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• 校园里绿草茂密，绿树成荫，虫鸣鸟叫．通过你的调查，你知道了你的校园里有哪些生物吗？把你的调查填写在下表中．-生物
• This big bag is too heavy for the little boy ______.Who volunteers to help him?[ ]A. carries B. carr
• Mum wants to make a cake．She needs ___________some eggs.[ ]A. buyB. buysC. to buyD. buying-七年级英语
• 改错题。 1. Would you like having some tea? ________ 2. We need a egg and some bread.________ 3. There a
• It's not useful _____ about your grades.[ ]A. to worry B. worriedC. worrying D.worry-九年级英语
• 按要求完成句子。1. I hope I can forget all my problems.(变成同义句) I hope________ ________ all my problems.2.He
• 生物小组四名同学分别采用下列途径收集资料，其中不科学的途径是（）A．上网搜索B．去图书馆查阅书刊C．请教科学家D．到小说中查找-生物
• 在调查校园生物时，首先要确定（）A．调查的方法和路线B．调查的范围和方案C．调查的目的和对象D．调查的时间和范围-生物
• 我们在对校园生物种类进行调查时，首先要确定（）A．小组和组长B．时间和方案C．范围和顺序D．目的和对象-生物
• 单项选择。Every morning he takes the number 1 bus . [ ]A. to go to school B. goes to school C. go to scho
• 在某地域调查生物的种类时，你认为正确的步骤排列是（）①选择调查范围②归类③调查记录④整理资料⑤交流⑥设计调查路线⑦分组．A．①②③④⑤⑥⑦B．①⑦⑥③②④⑤C．②④⑤①⑦⑥③D．④⑤①⑦⑥③②-生物
• —Shopping with me?— Sorry. I have a lot of clothes _____.[ ]A. to washB. washedC. wash D. to be wash
• It’s important __________. [ ]A. for us to learn English wellB. to us to learn English well C. for u
• Don't forget __________your photo here tomorrow. [ ]A.takeB.to takeC.bringD.to bring-七年级英语
• She couldn't decide which restaurant _____. [ ]A. to have lunch B. to eat C. to eat at D. eatin
• —What made her so happy?—Her parents decidedher a new computer.[ ]Ato feel; buy B. to feel; to buyC.
• 调查是科学探究常用的方法之一．调查时首先要明确______和______，制定合理的______．-生物
• 下列关于“校园生物调查”的叙述中，不正确的是[]A．调查生物可不必太注意草丛和落叶里的小生物，只须注意较大的生物就行B．调查时，全组的同学要集体行动，不要攀爬高处C．调查到-七年级生物
• 假如让你调查全国七年级学生的平均身高，你在调查时会选用的方法是[]A．普查B．重点调查C．问卷调查D．抽样调查-七年级生物
• It's best _______ Australia in summer.[ ]A. visiting B. to visit C. visit D. visited-九年级英语
• Would you like ________a CD _______your birthday? [ ]A. getting, toB. to get, forC. getting, forD. t
• These boys want ______ some orange juice.[ ]A. drinkB. drinks C. to drinkD. drinking-七年级英语
• He expects ________ to Tibet for traveling.[ ]A. goB. to goC. goingD. went-八年级英语
• 根据句意，用括号内所给单词的适当形式填空。1. Is there a good restaurant ________ (eat) around?2. I'd like to buy som
• Amy is always the first one ______ to go to school. [ ]A. go B. to go C. goes D. going-七年级英语
• The policeman asked the children ____ in the street. [ ]A. not to play B. to not play C. don't
• 在拟订调查计划时，不可取的是（）A．分成若干小组B．每组至少选一个调查的问题C．选择的问题越深奥越好D．每组成员分工合作-生物
• 下面的记录卡是刘刚、李明、张琳同学在进行校园生物调查时的记录。请根据卡片中提供的信息回答下面的问题。（1）他们将调查的生物分成A、B两类，A类是，B类是。（2）他们将A又分-七年级生物
• 如果要知道某山上植物的种类和数量，应该采取的科学方法是（）A．观察B．调查C．测量D．分析-生物
• 在“调查校园、社区或农田的生物种类”活动中，不需要进行的是（）A．设计调查表B．制作植物标本C．做好调查记录D．做好归类整理-生物
• He has read many books on science, so it's easy for him _____ these questions.[ ]A. answers B.
• There are many ways____learn a language. I think using it is the ___way. [ ]A. to; bestB. of; goodC.
• Tom decided _____ his homework at school.[ ]A. to do B. do C. doing D. does-七年级英语
• The father is telling his son ______ on New Year Eve. They're going to listen to the New Year c
• 调查是科学探究的常用方法之一．有时因为调查的范围很大，不可能逐个调查，就要选取一部分调查对象作样本进行调查，这种方法叫（）A．抽样调查B．普遍调查C．典型调查D．个别访谈-生物
• 按照形态结构特点，将生物归为植物、动物和其他生物三大类。[]-七年级生物
• 在调查校园的生物种类时，下列四位同学的做法正确的是（）A．看到自己喜欢的花就摘B．边观察，边记录C．爬到树上掏鸟窝D．看到自己不喜欢的生物就躲开-生物
• It's importantthe piano well. [ ]A. of him to playB. for him to play C. of him playing D. for h
• It's important for teenagerstime with friends.[ ]A. spending B. spend C. to spendD. spent-九年级英语
• My mother asks me ______TV before finishing my homework.[ ]A. not to watchB. don’t watchC. not watch
• 研究动物行为的方法主要有______和______．动物学家在森林中用摄象机偷拍下鹿群的生活状况，这种研究方法属于______；将两只幼兔同另外一窝幼兔放在一起，并在其中一只幼兔的-生物
• 2012年4月，某中学的学生随机调查了本校八年级10个班共100名学生在去年不同季节流感的发病情况，调查结果如下表．请回答下列问题：调查人数患病人数季节春季夏季秋季冬季男生5-生物
• It's a good habit _____ breakfast every day. [ ]A. had B. have C. has D. to have -九年级英语
• 一位同学在调查本地动物资源中，发现本地两栖动物的种类和数量比较多，那麽当地环境可能是怎样的（）A．炎热多雨B．常年寒冷C．炎热干燥D．工业化大城市-生物
• 下列叙述属于调查的是（）①我国的森林资源每年清查一次②我国进行的人口普查③医生对学生患龋齿情况的调查④对蛙卵发育过程的观察．A．①③④B．①②③C．①②④D．②③④-生物
• __________abookinthelibrary,enterakeywordintothecomputer.[ ]A.TofindB.FindC.TowriteD.Write -九年级英语
• Can you please tell me where ____________ the post office?[ ]A. to find B. can I findC. how to find
• We don't have enough pens _____. Give us _____. [ ]A. to write; much more B. to write with; a f
• They were madeby the lovely girl.[ ]A. to laughB. laughC. laughingD. laughed-九年级英语
• My wife often forgetsthe door, but she rememberedit when she left yesterday.[ ]A. to close, closing