某班同学在《研究光对鼠妇生活的影响》实验中，甲、乙、丙、丁四组同学所使用的鼠妇数量依次是3只、2只、1只、10只，使用鼠妇数量比较科学的小组是（）A．丁B．丙C．乙D．甲-生物

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• 某同学探究蟑螂的行为，在铁盘内放上一层湿土，一侧盖上不透光的纸板，另一侧盖上透明的玻璃板，在铁盘两侧的中央处各放l只蟑螂，观察蟑螂的行为，该同学对上述实验重复了l次-生物
• – Have you read the of the country you are going to?– Yes. Now I know it’s famous for natural beauty
• I hear they are going to London, but I don’t know ________ they will stay there.A．how soonB．how ofte
• — How far is it from Tianjin to Changsha？— It is a _______ flight from Tianjin to Changsha.A．2-hour-
• — I’m sorry, sir. I’ve made a lot of mistakes in the exam.— Never mind. _______, the exam is a littl
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• 完成“探究光对鼠妇生活的影响”实验后，应如何处理鼠妇（）A．顺手扔掉B．直接处死C．放归自然D．恒温培养-生物
• 王明同学在探究“光对鼠妇生活的影响”时，其做法如下：将一只刚捉到的鼠妇放到一边是湿土、另一边是干土的木盒中，用一块黑纸遮住湿土的一边，然后计时观察，共观察10次，结果-生物
• Lucy does better in drawing than her twin sister. A．is better forB．is better atC．is better to D．is b
• 实验探究．小明在室外玩耍时，发现鼠妇经常躲在阴暗、潮湿的花盆底下或石块下，小明不禁感到奇怪：鼠妇为什么喜欢阴暗、潮湿的地方呢？后经过长期观察，小明推测：鼠妇怕光．并捉-生物
• It’s possible to get $100 a day in this company, and some days you can get ______.A．muchB．moreC．litt
• At present, children mean____ to most parents in China.A．everythingB．nothingC．anythingD．something-八年
• – Dad, I was the first to reach the top of the hill.– Good job, Mary. I’m _______ of you.A．afraidB．p
• —Does Mary only have an apple for breakfast?—Yes. She eats like a bird ______.A．to wake upB．to be st
• 科学探究你尝试：探究是研究和学习生物学的一种科学方法，下面是一名中学生进行的科学探究的学习历程．西安八中陈重光同学家因为饲喂观赏小鸟而喂养着黄粉虫．黄粉虫原是粮仓中-生物
• 探究“光对鼠妇生活的影响”时，所用鼠妇的数量是（）A．1只B．5只C．10只D．8只-生物
• —______ do you like the film, American Captain 3?—It’s wonderful! I like it very much.A．HowB．WhoC．Wh
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• —You may go to Milan for a free trip.—It’s a very kind_____, but I really can’t accept it.A．excuseB．
• I’ll work hard to make a lot of money ______ I can buy a big house.A．ifB．becauseC．althoughD．so that-
• 鼠妇俗称潮虫，当你搬开花盆或石块，鼠妇很快就爬走了，请你作出假设，影响鼠妇生活的环境条件之一是（）A．光线B．空气C．温度D．水分-生物
• Please move the chair. It is ________.A．on my wayB．in my wayC．by the wayD．in this way-八年级英语
• – Having many helpers makes a task easier and faster to complete.– I think so. .A．Many hands make li
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• Steve isn’t as ______ as Kelly. He often makes mistakes in his writing.A．carelessB．tidyC．carefulD．di
• 通过科学探究已知：鼠妇喜欢生活在阴暗潮湿的环境中．在科学探究过程中，如果做出的假设是“湿度对鼠妇生活有影响”，那么该探究活动设置的一组对照应该是（）A．干燥和潮湿B．明亮和-生物
• Good friends are like stars. You don’t always see them, ______ you know they are there.A．asB．butC．fo
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• 3.. --- Smile is a magic thing. --- Yes. It costs ______ but gives so much.A．manyB．fewC．muchD．little
• 1. Miss Yang explains things very well and what she says can be understood ______.A．quietlyB．differe
• There is no doubt ________ the Diaoyu Island is part of China's territory.A．whetherB．whenC．whyD
• 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[]A．鼠妇喜欢明亮的环境B．鼠妇喜欢阴暗的环境C．鼠妇喜欢潮湿的环-七年级生物
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• 如果你翻动花园、庭院中的花盆或石块，常常会看到一些身体略扁、长椭圆形、灰褐色或黑色的小动物在爬行，这就是鼠妇，又叫潮虫．当你搬开花盆或石块，鼠妇很快就爬走了．这是为-生物
• —Betty, pass me the ______. I will cut the cake.—OK, Mom. Here you are.A．sugarB．scarfC．knifeD．note-七
• “探究光对鼠妇分布的影响”实验中，下列有关做法正确的是[]A．实验中只设置一个变量B．实验中的变量是光照C．实验中的变量是温度D．实验所用的鼠妇数量应为1只-七年级生物
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• 用鼠妇做完实验后，一定要将鼠妇消灭掉．______．-生物
• —Susan, can you help clean the window?—Why ______? Alice is sitting there doing nothing.A．himB．herC．