高效作业数学9上

直角三角形已知两边都是113 求斜边长度,把过程写出来, 正三棱锥的外接圆半径设棱长为l,已经求出高了h=√6/3,然后怎么算 一个正三棱锥边长为1,外接圆半径怎么求 电机振动给料机,哪个牌子的好?电机振动给料机,谁买过,用用还不错的,推荐给我吧, 振动给料机原件中的电机应用是怎么样的 电机振动给料机哪里做的好?电机振动给料机哪里做的好的,求推荐? 求出下面阴影部分的周长和空白部分的面积边长为4厘米 求知!高中英语中单项选择中的句首问题例如经常有句子________ a long time ,XXX ……A.exposed B.having been exposed C.exposing D.XXX反正就是这类题目,到底句首该怎么选啊,到底什么时候选ed结尾,什么时候 高中英语单项选择1.Could I use your bike?______ .a.yes,you could use it b.why,of course c.no,you couldn't d.my bike?2.As we all know ,Huang He is _____ river.A.China's second longest b.the china's second longest c.the second china's longest d. 高中英语难题好的哦,不要乱答. Work and play are both necessary to health;( )gives us rest and( )gives us energy.A.that,this B.one,the other C.one;another D.this;that绝对挑战智商,发散思维抽象思维的题B,C都不对。抽象思维 这个选Done只能跟可数名词， 求阴影面积求空白周长 11又6分之5减4又8分之5减5又8分之3=? 6点整时针与分针反向成一条线,当下一次时针与分针反向成一条线时,经过了多少分钟? 时钟的时针和分针在6点种反向成一直线,问:它们下一次反向成一直线是在什么时候 时钟上的时针与分针再6点钟反向成一条直线,问:它们下一次反向成一直线是几点几分 六点整时针与分针反向成一条线,下一次时针与分针反向成一条线是几点几分? 高中英语单项选择____ I get a job will I have enough money to go to school.A.Only B.Only if C.If only D.On condition thatThe retired man donated most of his savings to the school damaged by the earthquake in Yushu,____ the students to return t 求阴影周长、面积和空白面积 将下列句子改为感叹句.1.He is a very strong man.2.They got terrible news.3.The buildings are big and good-looking.4.Mary works very hard.5.They are so busy.6.It is a very interesting film.7.The girl dances very beautifully.8.The boy had bad 把下列句子改为感叹句!1:That is a very beautiful house2:You have a nice skirt3:We eat delicious mooncakes on that day4:He is an old man5:It is fine weather today6:Your bike is very beautiful 7:That boy is running very quickly8:This is an int 将下列句子改为感叹句 ,谢谢!1.It is a nice present.___ ____ nice present!2.It's sunny today.___ ____sunny day it is today!3.The children are working hard.___ _____the children are working! 将下列句子变成感叹句1.She thought a very good idea!2.they look happy 3.she signs well 把下列句子变为感叹句1.she runs quickly.2.it is a nice tie.3.this story-book is very interesting.4.your bell is too loud.5.she dances so well. 高中英语单项选择经典题 把下列句子变成感叹句一、把下列句子变为感叹句:1.She runs quickly.2.It is a nice tie.3.This story-book is very interesting.4.Your bell is too loud.5.She dances so well.二、选词填空.（What / What a / What an / How ）1._____ 将下面的句子改为感叹句怎么做?你只管去做衣服,为何如此啰里啰嗦? 七年级数学题 合并同类项 为什么通货膨胀表示该国货币所代表的价值量的下降而不是上升呢? 高数求贝努利方程通解～求照片 全在图上了... 求高数通解