青山

当α∈（2kπ+π,2kπ+7/6π）,k∈Z方程√|x-1|=xsinα的解的个数 把92π/7化成a+2kπ(0 英语翻译 他发生了什么事（become) 关于电学的一道计算题!有两个导体,电阻分别为10欧和30欧.把它们串联后通过10欧电阻的电流是0.5安,求电源电压. 一道电学分析计算题某电阻在电路两端的电压不变的情况下,阻值增加2欧,这时电流变为原来的2/3,则原来的电阻为多少? 一艘轮船逆流航行,每小时12千米,7小时达到乙港,从甲返回要6小时,船在静水中点速度和水流速? He t___ to listen carefully,and write down what the teacher said. He let me write down his instruction___ sure that I would know what was ___ after he went away.A.to make; to do B,to make to be done. right here waiting,right or wrong 很急!六年级数学! the young man sat there smoking,_____ of sorrowA was full B full 选哪个,为什么? The young man sat back in his sofa,_______ with what he had worked out to do with the remainingThe young man sat back in his sofa,_______ with what he had workedout to do with the remaining work.A.having satisfied B.being satisfied C.To be satisfied 三次根号1728 wrong is happy,right is sorrow是什么意思 nothing is right nothing is wrong是什么意思nothing is right nothing is wrong谁能告诉我 英语必修4第一课Reading翻译(a student of African widlife)全文 A PROTECTOR OF AFRICAN WILDLIFE 的翻译文 what___did he saidA.other B.else C.another WHAT HE SAID [ ] ME HAPPYA,MAKE B.TO MAKE C.MADE D.MAKING 我同学说是C ,不过这样SAID和MADE不就有两分动词了吗? What he said B19．They collected much money ________ the poor girl.A．in aid \x05\x05\x05\x05B．in aid ofC．with the aid of \x05\x05D．gave aid toB　考查固定短语.in aid of意为“帮助”；with the aid of意为“在……的帮助下 What he said annoyed us改同义句怎么改 1.一根桥桩全长12米,打入河底部分五分之14,露出水面部分比打入河底部分多0.7米,水深多少米?2.今年小明12岁,妈妈的年龄是36岁,多少年以后小明的年龄是妈妈的年龄的2分之1（列方程计算）有 已知:AB=40米,AD=100米,试求下面操场的周长 四年级下语文奇迹课堂227~228答案 英语翻译高中英语必修4UNIT1 怎样网购四年级上册语文和数学的课堂点晴 上课迟到、300字的心得怎么写啊? 古代埃及、巴比伦、印度、中国被称为文明古国的最主要原因是什么 一根木条24厘米长,围成窗户框架,横框x厘米,求木条面积,用代数式表示这个数 化简吧(x+y)(x-y)(x的平方+y的平方)(x的四次方+y的四次方)（a+2b）(a-2b)(a的平方+4b的平方)（a的四次方+16b的四次方） 计算,化简. 黄金分割 计算 化简分子是 3-根号5分母是 根号5-1我家有计算器..