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求面积周长第二个一个八一个三 求面积和周长.(1)r=5分米 (2)d=8米 (3)r=7厘求面积和周长.(1)r=5分米 (2)d=8米 (3)r=7厘米 (4)d=6厘米 d=1.8分米 求面积和周长一种零件的横截面是一个圆环,外圈半径是0.5米,内圈半径是0.4米.这种零件横截面的面积是多少平方米? 分析两个英文句子 哥哥姐姐帮帮忙啦 As is known to us all,friendship between boys are based on shared activities and interests.我想问问为什么会用shared 而不是 being shared呢To my surprise,the girl laughs the same way that h 请帮我分析两个英文句子.这两个句子出自Erskine Caldwell（欧斯金·考德威尔）写的短篇小说《Joe Cmddock’s Old Woman》（裘·克拉道克的老婆子）.其中有两句话我不懂：No man had ever seen in Julia anyth 动物会不会做梦啊?比方说猪睡觉时会不会梦到很多食物出现在它面前啊?还有狼睡觉会不会梦到好多小羊羔?我是说除了人类以外哈哈 动物会做梦那就太有意思了,难怪我看猪睡着了嘴巴都在 英语翻译China's embassy in Manila has also issued an advisory to its citizens in the Philappines to observe extra precautions. 英语翻译还有一句：“这么晚了还不眠么?你们都怎么了阿~哈哈~” 我生待明日,万事成蹉跎的意思 "我生待明日,万事成蹉跎"的解释 求英文达人帮忙分析这几个句子错哪了用一般现在是或现在进行时填空1.why (do) we (stop) here?I thought we were finished shopping.2.（Are) you (remember) all the snow we had this year?3.I (am seeing) some other nice coats ov 求英文达人帮忙分析这两个句子的区别why are you leaving so soon?The party just started.why do you leave so soon?The party just started. 求英文达人帮我分析这几个句子错哪了（3）用现在完成时,现在完成进行时,一般过去时填空.1.Roy (has visited) Yellowstone National Park last year.2.In 1872,Congress (maked) the Yellowstone area a park.3.(Have) you (saw) 动物会做梦吗?请问 若棱长均相等的三棱锥叫正四面体 求棱长为a的正四面体高 请教英语一句句子的成分分析问题But somewhere from the 19th century onward,more artists began...请问这里的somewhere是修饰哪个词,做什么成分? 若铜制机件的质量为0.445千克,如改用铝制品质量可减少多少?(铜的密度是:8.9*10^3千克/米^3,铝的密度是:2.7*10^3千克/米^3) 英语翻译the children are going to want something to keep them busy beyond swmming（这里的beyond作什么词性,they can explore jungles,peaks that reach almost 10000 feet high（这为什么要用high 而不用height） 英语句子分析问题He sat the water all about him green-blue.字面意思是什么?怎么都看不懂! 总人口超过一亿的国家有【 】.A,中国,日本,印度尼西亚,印度,孟加拉国,巴基斯坦.B,中国,蒙古,韩国,印度,日本,巴基斯坦.C,俄罗斯,孟加拉国,伊拉克,菲律宾,印度尼西亚,蒙古.D,越南,朝鲜,沙特阿 什么意思?“明日复明日,明日何其多?我生待明日,万事成蹉跎.世人苦被明日累,春去秋来老将至.朝看水东流,暮看日西坠……” 【急!求高人】英语改句子1、Our classroom is full of students now.（保持句意不变）Our classroom （ ）（ ）students now.2、l don't like the short plays.l don't like the cartoons,either.（合并为一句）l like （ ）the shor 从1开始的100个连续偶数之和是多少? 如下图所问求x的解 明日复明日,明日何其多,我生待明日,万事成蹉跎.世人若被明日累,春去秋来老将至. 英文：改句子,I see the film once a month.（once划线,划线提问）______ ______ ______ ______ ______ ______ you see the film?别问我是不是线划多了,试卷上真的是六条线,我看了无数遍! It is on the floor就象It is of interest.=It is interesting一样,应该怎么变? 世人苦被明日累,春去秋来老将至的意思世人苦被明日累,春去秋来老将至是什么意思 那位英语高人帮我?把下面的句子改成一般疑问句!We usually write e-mails to each other on Saturday evening.They have the same hoppy.Suhai and Suyang like listening to music after school.Helen usually watches TV in the evening. 如下所问,这是什么心理效应或者定律?忘了叫什么了在两个队伍中,如果你在其中一个队伍里（任意一个队伍）,另一个队就会显得比你所在的队伍更有优势. 不是双胞胎有心电感应吗 1.句子改错1.there are a table and some chairs in the room.__________________________________2.we are student in Miss Gao's class._________________________________3.there are much money in the purse._________________________________4.there are two