为了证明地球是个球体,小明收集了以下证据:①远离海岸的帆船,船身比桅杆先消失;②日食时,日轮的缺眼全查损部分为圆弧形...
B解析: 分析:现在人们对地球的形状已有了一个明确的认识:地球并不是一个正球体,而是一个两极稍扁,赤道略鼓的不规则球体. 解答:能证明地球是个球体的证据有远离海岸的帆船,船身比律...
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日常生活和自然界中有许多与物理学有关的现象,以下现象的成因与物理来自知识对应关系错误的是A.雨后彩虹--光的折射B.余音绕梁--声音的反射C.破镜难重圆--分子讲岩衡些李为他某掌间存在斥力D.日食和月食--而冷缺光的直线传播
试题**:解领C试题解析:分析:A、下过雨后,有许多微小的水滴漂浮在空中,当阳光照射到小水滴上时会发生折射,分散成7种颜色的光.很多小水滴同时把阳光折射出来,再反射到我们的眼睛祖...
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下述食谱是某一幼儿园小班一日食谱,根据学前儿童膳食配置的原则,分析并指出该食谱不合理的地方!
幼儿及学龄前儿童膳食,根据平衡膳食的原则:(1)膳食中应包括人体所需要的各种营养素。(2)各种营养素之间有适当的比例。(3)食物品种多样化。(4)合理的饮食**与膳食量。(5)调...
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下来自列光学现象中不属于光的直线传播360问答的是A.太阳光下的树影B.日食现令率义船再杂决象C.在海洋馆中看到鲨鱼在游D.太阳光穿过浓密的树叶空隙,地面上有许多圆型的小光斑
试题答案:C置界顺鱼间圆些试题解析:分析:(1)光在同种均匀介范联质中沿直线传播.(2)光从一冷斯卷香道往项旧投掉西种介质斜射入另一种介质时,光的传播方向会发生偏折,这种现象叫做...
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追名逐利,劳心劳力。命里无时难寻觅。逍遥自在,今夕何夕?管它日食月食!猜一生肖,求大神解析万分感谢
要是日食月360问答食的话容易联想到天转组斗要红台效狗食月天狗食日,但是又欢与追名逐利联想不到一起晚上极已,可能是我见识不够吧,是不是主任追名逐利铁京按独鲜自包拉优,看家狗劳心劳...
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材料一:世色效界天文学家普遍承认中食国古代日食记录的可信程度最高,为世人留下了珍贵的科学文化遗产。我国古代夏、商、周时期因历史久远,缺乏精确的文字记录,因此难以精确地断代,而日食天象就像是一座相当精确的历史时钟,可以帮助确定一些历史事件的时间。材料二:***办公厅下发《关于妥善做好应对日全食工作的通知》要
试题答案:(1)①360问答文化遗产是一个**和民族历史文化成就的重要标志。日全食文化对于研究人类文明的演进具有重要作用。它是人类共有的精神财富。中国古代日食记录的可机场立信程度...
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蛇灵传说结局?
结局:此时的狄府,李元芳终于擒获了又来刺杀虺文忠的黑衣人,她也是血灵。虺文忠告诉元芳说血灵并不是一个人,而是一对孪生姐妹。现在另一个血灵就在狄大人身边,情况十分危险。二人立刻赶往...
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我的女友是九尾狐结局是什么?
我的女友是九尾狐,在第十六集大结局,剧中尾狐就剩下一条尾巴,车大雄和尾狐在废弃的体育馆里,月光下映出尾狐仅剩下的一条银白色的尾巴,然后镜头转向朴东珠,默默地流下眼泪。然后下一个场...
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跪求福建2010年高考语文卷答案志父离间项营左呀!!!!!
(一)默写常见的名句名篇【命题立意】本题考查考生默写常见名句名篇的能武尽领质鲜心谁浓根掉力(能力层级为A)【解析】六句话都是教材中的名句名篇,并且都是要求背诵的篇章,需要结合上下...
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下列现象与所对应的物理知识相符的是A.在平静的湖面可以看到蓝天白云---光的折射B.游泳池注水后,看上去好像变浅了----光的反射C.太阳光经过三棱镜后可以产生彩来自色光带---光的色散D.阳光透过树叶间的缝隙**地360问答面上,形成圆形光斑----总光的直线传播
试题答案:CD试题解析:分析:光从一种介质斜射入另一种介批质时,光的传播方向住乐屋杨汽仍放谓会发生偏折,如:透镜的应用、池水变浅了等.光在同一均匀介质中是沿直线传播的,应用的实例...
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下列说法中正确是A.烧开水时,看到从壶嘴冒出“白气”,“白气”的形成是汽化现象B.今年5月21日出现来自了月食现象,月食的360问答形成原因是光沿直线传议观应灯简研下谈言胡播C.用锯条锯木头时,锯条和才头都发热,是因为做功时把机械能转化为内能,使它们的内能增加D.青岛的气候,冬暖夏凉,原因之一是青岛靠近海,海水的比热容大,同样受热或
试题**:BCD试题解析:分析:(1)物质由气态变成液态的现象叫做液化;(2)光在同种均匀透明介质中沿直兴每分号良径世线传播,日食、月食、影子、小孔成像等都是光的直线传播形成的;...
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描述你对善德**这部剧的看法
首先是务将不煤西剧情吧,应该说很精彩,即使男人的大戏,有是女人的大戏。全片故事情节思只凯必独复案还算紧凑。。。只是结尾有点瑕疵,尤其来自是美室死后。。。收视率也下降了。。当然也能...
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下列现象中,能用来自光的直线传播规律解释的是A.雨后彩虹B.水中倒影C.立竿见影D.红外摄影
试题答案:C试题齐笔山以功还顶解析:分析:(1)光在同一均匀介质中沿直线传播,光沿直线传播的实例得啊有:小孔成像、激光准直、影子、日食和月食等.(2)光从一种介质斜射入另一种介质...
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