“D-R.全文为－－"Obviously it's tough news for any son to hear," said Robin Costello,a spokeswoman for one of Kennedy's sons,Rep.Patrick Kennedy,D-R.I."He's comforted by the fact that his dad is such a fighter,and if anyone can get through some

“D-R.全文为－－Obviously it's tough news for any son to hear, said Robin Costello,a spokeswoman for one of Kennedy's sons,Rep.Patrick Kennedy,D-R.I.He's comforted by the fact that his dad is such a fighter,and if anyone can get through some 《三峡》全文－郦道元 obviously是什么意思 obviously not He found it dull to be kept in the same class with the other students,for his english was -----above the beginners'level.A obvious rather B obvious much C obviously well D obviously fairly选C为什么怎么理解为什么是两个副词 I can think of many cases ____students obviously know a lot of English words and expressions but can't write a good essary.A why B which C as D where为何答案为D 《生于忧患,死于安乐》全文－孟子 若两圆半径分别为R和r(R>r),圆心距为d,R²+d²=r²+2Rd,两圆位置关系为? 高中电磁感应基础一题一圆形导体直径为d,内有磁场,变化率为b,此导体一半电阻为r,另一半为2r,求为r的一半中两4等分点（靠近不同电阻分界点处的）间的电压.－.－－r－－.－［ ］［ ］－－ obviously的问题外教老师问我这个答案为什么是正确的 我想说明显是正确的 所以我说了obviously 那个老师听不懂? 两圆半径分别为R,r（R不等于r）,圆心距为d,且R平方-r平方+d平方=2dR,则两园关系为什么 若两圆半径分别是R、r,圆心距为d,R>r且R^2+d^2-r^2>2Rd时,这两圆的位置关系式 一个圆的半径为r,直径为d,则r:d= 一个圆的半径为r,直径为d,r:d=? 如图所示,灯L标有“6V3W”的字样,电源电压为9v且保持不变,闭合开关S,灯L正常发光,求：1)电阻R的阻值2)灯泡正常发光是电阻R消耗的功率.图：┌－R－L－┑└－d－S－┘R:电阻L:灯d:电源S:开关 圆的半径为r,直径为d,面积为s,那么2r^2 圆的半径是r,弦长为d,r=2d,求圆心角 以R,r为半径的两圆互相外切,P为切点到外公切线的距离为d.求证1/R+1/r=2/d