48.39' 67.41'=___ 90.-78.19'40＂=___ 21.17'乘以5=___ 176.52'除以3=___（精确到分）.文中所有 .句号 表示度!

48.39' 67.41'=___ 90.-78.19'40＂=___ 21.17'乘以5=___ 176.52'除以3=___（精确到分）.文中所有 .句号 表示度! return from=___ ___ ___? The girl is good at singing.=___ ___ girl ___ ___ good at singing.=___ ___ ___girl ___ ___ ___.还=___ ___ girl ___ ___ ___ ___ singing. 如图,已知三角形ABC中,角C=90度,角B=45度,AC=1,那么BC=___,AB=___,tan45度=___=___,cot45度=___=___,sin45度=___=___,cos45度___=___. 英语翻译My sister is ___ ___ working in that company.=My sister ___ ___ ___ ___ ___ ___ ___ ___. He said,I lost my pen yesterday.=He said that ___ ___ ___ ___ pen ___ ___ ___. 给下面单词加一个字母ear+___=___ hat+___=___ us+___=___ our+___=___and+___=___ now+___=___ each+___=___ Kitty came here three years ago=It ___ ___ ___ ___ since Kitty __ ___ 2n+7n=(___+___)n=___ 数学题求答案!速度!年利率=___×12,利息=___×___×___,利息税=___×___税后利息=___×（1-___）,本利和=___+___税后本利和=___+___ 几道有理数加减法的填空题.（-20）+（+3）-（-5）-（+7）=___+___+___+___=___=___；(+9)-(+10)+(-2)-(-8)+2=___+___+___+___+___=___. 81.21°=___度___分___秒 数学题10.12°=___°___'___ 33.52°=___度___分___秒 the room is tidy =it is ___ ___ ___ to tell you the true=___ ___ ___ 39.145°=___度___分___秒 pretty healthy= ___ ___ ___(填3个词)