主族副族判断

（-a³b的6次方）²-（-a²b的4次方）³ 3/5=15分之几=几分之15=几（填小数） 将一个正方体截去一个角,则其面数( ) a增加b不变c减少d上述三种情况均有可能 将一个正方体截去一个角,则其面数( ) A.增加 B.不变 C.减少 D.上述三种情况均有可能 如果两个数中,较小数是较大数的因数,那么这两个数的最大公因数是什么 Your message has been sent! Your message has been received.Thank you for your mail.You receive this email because the recipient翻译下 切一个正方体的一个角,面数增加还是减少 清明节的来历和习俗有哪些? Farewell To Love 歌词 清明节的由来和习俗 The book shop () for eight years.A.has been open B..has been opened C.has opened D.has open()里面应该填什么？ 某小学男女生之比是16：13,又转来几名女生,男女生之比是6：5,这是全校有880人,求转来女生多少人?（ ） the dress looks very fashionable,but----------actual sales,it hasn't been very successful.A.according to B.in terms of 选哪个,原因? His new book consisting of useful data has been well receive.请问下中文怎么译啊?The coach told him to bathe his eyes twice a day.本句中的"TOLD"是属于过去式还是属于过去分词啊? A book,as well as a pen and a magazine,______（have、has）been left in the reading-room. 英语翻译这句话中的Yours been在这里怎么翻译, 两个数的最大公因数是12,最小公倍数是72,而且大数比小数大12.这两个数分别是多少咋算的 The article says we have to bid farewell to the holiday and resume our workbid在这里是什么意思呢? so so nothing comes from nothing 是啥意思 love has been over,so life is nothing nothing nothing...I don't believe it...翻译一段 ._money has been received by_people who suffered from the floods.A A lot of; a good many of B A great deal of ;a great many C,A good many;a large number of D,A great deal of;lot of 为什么选B? have you heard from him recently?no,nothing for a while. the received kind____(treat)from him为什么要填treatment..?急..谢谢.. 一首歌 男的唱的 风格很像后街之类的组合 歌词中有the...is...but (sky?)is grey(sky?is grey)这首歌我听过不止一次 应该不是很冷门的歌上面的歌词也不一定正确的 像sky grey 之类的词都是听到的 不 解释一句话：they have the eyes of people who can tell what time it is by the color of the sky.直接翻译就是 ：他们拥有只要看天色就能知道时辰的人的眼睛 To fly in the sky is expected by all the people 某数四舍五入取近似值为3.2则这个数介于什么和什么之间 Blue is a colour of the sea and the sky.So some people think it is a colour.英文 把一个正方体截去一个角,剩下的几何体最多有7个面.对还是错? 如图,正方体截去一个角后,剩下的几何体有多少条棱?多少个面?多少个顶点? 已知一个函数在一个定义域上递减 求这个函数中的这个未知数的取值范围