下列关于人类起源的叙述正确的是A．人类是自然产生的B．人类是由黑猩猩进化而来的C．人类是由现代类人猿进化而来的D．人类是由森林古猿进化而来的-七年级生物

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• 1987年国际学术界形成了比较普遍的看法，认为人类的始祖存在于以下哪个洲？（）A．亚洲B．非洲C．欧洲D．美洲-七年级生物
• 促进森林古猿下到地面生活的环境变化是大量消失。由于环境的改变和自生形态结构的变化，一代一代地向的方向发展，前肢则解放出来，能够使用树枝、石块等来获取食物、防御敌害-七年级生物
• 人类和类人猿都起源于森林古猿。最初，森林古猿在茂密的森林里过着树上生活，后来地球上的一些地区，气候变得干旱了，森林减少了。在这些地区生活的森林古猿被迫下到地面上寻-八年级生物
• 人区别于现代类人猿的特点不包括下列哪一项()A．人能够制造和使用工具B．人有喜、怒、哀、乐等表情C．人有发达的大脑，有语言和意识D．人能直立行走，有灵活的双手-七年级生物
• 通过对黑猩猩与人的骨骼比较，可以得出的结论是A．人和黑猩猩本质上是一样的B．人是由黑猩猩进化而来的C．人和黑猩猩由共同的祖先进化而来的D．黑猩猩可以进化成人-八年级生物
• 从进化的角度看，人类和类人猿的共同祖先是（）。A．长臂猿B．大猩猩C．森林古猿D．北京猿人-七年级生物
• 人类祖先与猿分界的重要标志是（）A．脊柱是弓状B．四肢健壮C．骨盆变长增宽D．两足直立行走-八年级生物
• 古人类化石“露西”是在非洲发现的是一个不争的事实..................（）-七年级生物
• （7分）实验探究（一）生活中一些人酗酒后，情绪激动，喜怒无常．．．．．．酗酒对人体有危害吗？仕轩同学希望通过探究“酒精对水蚤心率的影响”来寻找答案。在室温条件下，他选用10只大小-九年级生物
• 古猿进化成了人，人脑比猿脑发达，造成这种结果的根本原因是[]A．古猿进行劳动和集体生活B．古猿的手和足得到了发展和改善C．古猿转移到平原上生活D．古猿的直立行走-八年级生物
• “露西”被认定属于古人类而不是类人猿的主要原因是[]A．后肢站立B．直立行走C．能制造简单工具D．能食用各种食物-七年级生物
• 从“东非人”使用的石块化石推测，此时代的古人类①能制造简单工具②能使用工具③能获取食物，防御敌害④能使用火[]A．①③B．②③④C．①②③D．②③-七年级生物
• 由森林古猿进化到人类最关键的一步是[]A．直立行走B．制造工具C．形成了语言D．形成了思想-七年级生物
• 人类向文明迈进的重要标志是[]A．直立行走B．火的使用C．制造工具D．语言的产生-八年级生物
• 类人猿是人类的近亲。[]-七年级生物
• 人类学家把下列哪项作为人与猿分界的重要标准之一[]A．脊椎由弓形变成“S”形B．直立行走C．下肢增长D．骨盆变短增宽-七年级生物
• 下列动物中，不属于现代类人猿的是[]A．黑猩猩B．大猩猩C．长臂猿D．金丝猴-八年级生物
• 人和类人猿的共同祖先是[]A．森林古猿B．长臂猿C．猕猴D．黑猩猩-八年级生物
• 下列关于人类由来的说法中，不正确的是[]A．人类起源于几百万年前B．人类不是“上帝”创造的C．人类是由类人猿进化来D．“露西”是古人类的一员-七年级生物
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• 近年来，我市天更蓝、水更清，大雾天气明显比往年少……雾的形成属于物态变化中的[]A．熔化B．液化C．汽化D．升华-九年级物理
• 长春市是一座季节特征分明的城市，雨、雪、雾、霜是自然界描绘的一幅幅壮丽景象，以下分析正确的是：[]A．春天的雨是熔化现象，形成过程需要放热B．夏天的雾是液化现象，形成过-九年级物理
• 液化石油气是在常温下用方法，变成液体后存储在钢瓶中。若将液化石油气钢瓶的阀门打开，让液化石油气快速放出，则钢瓶内的温度将。-九年级物理