哪些动物在森林唱歌

i want to book one room.为什么不用a room he was doing his homework yesterday afernoon改为否定述句 I want to book two rooms( )doudle beds A.has B.and C.with求讲解这道题为什么选C（因为是要讲题的,所以望讲解的清晰） He was doing his homework yesterday afternoon 改为否定陈述句 You want to telephone Jin Ling Hotel to book a room.的意思 there appeared on the horizon a man on horseback ,riding in my direction Look!The man is t_____ the horse to the young tree.Stop him!The teacher said that earth c_____ the sun.If you want to have many friends,try to be a good l_____ 已知关于x的抛物线y=ax²+x+c(a≠0)与x轴交于点A(-2,0),B(6,0),求出此抛物线的解析式 Look.The man is _____(tie) the horse to the young tree.Stip him! it might be a man riding a horse为什么用riding There is more in education than just learning facts那个learn为什么是ing呀 But there was more than just money at stake how to translate it into chinese? 《论语》中劝朋友不要骄傲的句子. 分别带有“孙”这个字的古诗和带有“佳”这个字的古诗 只一句 7言的就是类似于 “儿孙未解供耕织” 这样的 和 “每逢佳节倍思亲”这样的 There is more to it than just keeping building from falling down 这句话的意思. 理论力学动量与动量矩问题OA对O轴动量矩为正向；AB对O轴的动量矩为负向；但是OA和AB应该都是绕O轴顺时针转动吧?怎么判断动量矩的正负?怎么算AB杆的动量?我怎么觉得结果应该是4mlω/cosθ 晚的朋友很骄傲,常常自以为是,我可以用《论语》中的哪句话劝他? 理论力学 动量矩定理的问题我的疑问：求AB杆的角加速度对B点或者对C点使用动量矩定理不应该是一样的么? 几道数学题填空题1.梯形的高是1.8厘米,面积是7.2平方厘米,它的中位线是（ ）.2.有一条对称轴的图形有（ ）,有二条对称轴的图形有（ ）.3.一块梯形的铁皮,高8厘米,上底是14厘米,下底是16厘米 He is doing his homework.He said改为宾语从句 做下面的几道数学题,都是填空题（1）一个长方形,如果他的长和宽都增加4CM,所形成的新长方形面积比原来长方形面积大112平方厘米,原来长方形的周长是（ ）CM.（2）一个圆柱体的侧面积是942 be linked with与 be associated with究竟可不可以互换? .When I came into the house,the boy there looked 20.When I came into the house,the boy there looked 20A me ______ surprise.A.at; in B.for; to D.by; for D.up; over 英语中名词+动词过去分词是个什么语法结构?比方说there is a dog hidden behind the tree. 由名词加动词过去式或过去分词构成的英语合成词有哪些?多多益善,像warm-hearted之类的单词. 第六大题的第一小题怎么写? 以《“矛与盾”故事续集》为题,写一件发生在当代的、你周围生活中的“矛与盾”故事.400字左右. 我不知道该如何写,可以指一条路给我吗? 第六大题第一小题怎么写,急、、、、、、 第六大题的第二小题用以便写句子 请看看这句话的中文怎么说“In connection with."In connection with these customer visits,Mr Tank Jason,will also regularly meet the shareholders of Simens,company Dalian Machine Tool,located in Dalian. 空着的几道题怎么写啊? 设二次函数f(x)=x的平方+ax+b,集合A={x│方程f(x)=x的解}={a}(a,b)∈M,求集合M.