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阅读理解。 I'm a skeptic (怀疑论者) when it comes to the benefits of taking vitamins and other supplemen
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小明将一张正方形包装纸,剪成图1所示形状,用它包在一个棱长为10的正方体的表面(不考虑接缝),如图2所示.小明所用正方形包装纸的边长至少为()A.40B.30+22C.202D.10+102-数学
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阅读理解。 Yoga (瑜伽) is the most popular and fast growing exercise trend of all. Yoga has a greater posit
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如图所示,AB⊥BC,DC⊥BC,E是BC上一点,∠BAE=∠DEC=60°,AB=3,CE=4,则AD等于()A.10B.12C.24D.48-数学
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△ABC中,AB=AC,∠BAC=90°,D为BC中点,DE⊥DF,若BE=12,CF=5,求EF的长.-数学
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完形填空。 Is the world really going mad?1 day I was sitting in a restaurant2 a quick drink and a talk wi
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阅读理解。 Jeremy Wirick, 9, has been back in school for less than two months, but he has already had sev
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阅读理解。 请认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意:每空格1个单词。 Do you raise salmon (鲑鱼) in your classroom a
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阅读理解。 A snow leopard roars in the high mountains of Asia. A black rhinoceros gallops across the plai
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阅读理解。 A new weapon is on the way in the fight against smoking in Europe. Soon when smokers buy cigar
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阅读理解。 The Japanese government has launched a campaign encouraging people to go to bed and get up ext
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阅读理解。 We have met the enemy and he is ours. We bought him at a pet shop. When monkey-pox, a disease
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任务型阅读。阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词。注意:每个空格只填一个单词。 Forgetting little things happens every day, but i
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一位园艺设计师计划在一块形状为直角三角形且有一个内角为60°的绿化带上种植四种不同的花卉,要求种植的四种花卉分别组成面积相等,形状完全相同的几何图形图案.某同学为此提-七年级数学
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如图,△ABC是等腰直角三角形,BC是斜边,将△ABP绕点A逆时针旋转后能与△ACP1重合.若AP=3,则PP1的长是______.-数学
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阅读理解。 Directions: Read the following passage. Answer the questions according to the information give
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阅读理解。 There is a lake near a forest in Sweden. The water in the lake is very clear and everything is
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阅读理解。 Restaurant owners should not use disposable chopsticks for the good of their health and the en
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阅读理解。 Have you ever been frustrated (沮丧的) when left talking to yourself after your mobile phone batt
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阅读理解。 Car sharing is another way to drive green that's gaining in popularity, especially in urb
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阅读理解。 At first sight, you would think the collection of hundreds of colored shards (碎片) could be a w
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Reading comprehension. In meditation (冥想), people sit quietly and focus their attention on their bre
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如图,△ABC中,∠ACB=90°,CD⊥AB于D,若∠A=30°,则∠1=()度,∠2=()度,∠B=()度.-七年级数学
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下列条件中,不能判定两个直角三角形全等的是()A.两条直角边对应相等B.斜边和一锐角对应相等C.斜边和一条直角边对应相等D.面积相等-数学
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△ABC中,AD是高,∠B=45°,∠C=30°,AD=2,则△ABC的面积为______.-数学
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下面关于两个直角三角形全等的判定,不正确的是()A.斜边和一锐角对应相等的两个直角三角形全等B.两条直角边对应相等的两个直角三角形全等C.斜边和一条直角边对应相等的两个直-数学
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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。 Nobody has ever succeeded in their attempt to stay young
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阅读理解。 The human body is a living machine, and, like all machines, it needs "fuel" (燃料) to
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信息匹配。Autumn blues?Let the sunshine in.Falling leaves, withering flowers, cold winds, faint sunshine.
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阅读理解。 If you're a male and you're reading this, congratulations! You're a survivor. A
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阅读短文,根据短文内容判断正误,正确的填A,错误的填B。 American doctors say that mothers who smoke before their babies are bor
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阅读理解。 Many people turn to the web for health advice. Women use the Internet to look for health infor
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阅读理解。 Food sometimes gets poisoned with harmful things. A person who eats such food can get an illne
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阅读理解。 Paragraph 1Scientists have learned a lot about the kinds of food people need. They say that th
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阅读理解。 People believe that climbing can do good to health. Where can you learn the skill of climbing
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如图,D为BC的中点,DF⊥AB于F点,DE⊥AC于E点,且DE=DF,则Rt△()≌Rt△(),根据:();Rt△()≌Rt△(),根据:();还有△()≌△(),且△ABD为()三角形,△ABC为
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阅读理解。 Earlier this month, the Obama Administration called for increased protection of the world'
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阅读理解。 Health is the most important thing in the world. Nothing is more important than health. If one
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如图,在△ABC中,中线CM与高线CD三等分∠ACB,则∠B等于______.-数学
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阅读理解。 The city of Rome has passed a new to prevent cruelty to animals. All goldfish bowls are no lon
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如图,在△ABC中,∠C=90°,∠ABC=60°,BD平分∠ABC,若AD=6,则CD=().-八年级数学
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如果等腰三角形的底角等于30,腰长为5cm,则底边上的高等于()cm.-八年级数学
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(1)如图,BD与CD分别平分∠ABC和∠ACB,已知∠BDC=130°,求∠A的度数.(2)将一副直角三角板如图放置,使含30°角的三角板的短直角边和含45°角的三角板的一条直角边重合,求∠1的度数
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如图,∠BAD=∠BCD=90°,AB=CB,可以证明△BAD≌△BCD的理由是()A.HLB.ASAC.SASD.AAS-数学
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阅读理解。 Ever since news of widespread food recalls caused by a carcinogenic dye (颜料) broke, there has
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阅读理解。 A single night of taking the drug Ecstasy (摇头丸) can cause serious brain damage and speed up th
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如图,点A是5×5网格图形中的一个格点(小正方形的顶点),图中每个小正方形的边长为1,以A为其中的一个顶点,面积等于52的格点等腰直角三角形(三角形的三个顶点都是格点)的个数-数学
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A、B是平面内两个不同的定点,在此平面内找点C,使△ABC为等腰直角三角形,则这样的点C有______个.-数学
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如图,在等腰Rt△ABC中,∠C=90°,正方形DEFG的顶点D地边AC上,点E、F在边AB上,点G在边BC上.(1)求证:△ADE≌△BGF;(2)若正方形DEFG的面积为16cm2,求AC的长.-
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如图,△ABC内接于⊙O,∠A=30°,若BC=4cm,则⊙O的直径为()A.6cmB.8cmC.10cmD.12cm-数学
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你对青春期的感受是什么?-七年级生物
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