更多“一棵度为m的树中，有ni个度为1的结点，有n2个度为2的结点”相关的问题
二段流量（）Nm3/h，进口压力（）MPa（A），进口温度（）℃，出口压力（）MPa（A），出口温度（）℃，冷却水温（）℃；
点击查看答案
54.第二性征的区别下列不正确的是（）
A.体毛和阴毛分布的特征
B.乳房发育与皮下脂肪
C.皮肤色素发布
D.肌肉发达程度
E.声音的强弱与音调
点击查看答案
在搜索引擎的搜索框中输入 excel2016 inurl:jiqiao，检索目的是（ ）。
A . 要求网址中出现jiqiao这个字符串，查找有关EXCEL2016技巧方面的信息资源B . 要求标题中出现jiqiao这个字符串，查找有关EXCEL2016技巧方面的信息资源C . 要求全文中出现jiqiao这个字符串，查找有关EXCEL2016技巧方面的信息资源D . 要求结果的任意位置出现jiqiao这个字符串，查找有关EXCEL2016技巧方面的信息资源
点击查看答案
Remember when kids used to just go out and play, and grown-ups spent evenings sharing stories on the front porch When the outdoors didn’t compete with video games, and "stranger danger" wasn’t such a grave concern for parents At some point, we all seemed to decide that letting children tear down the street on a dirt bike without a helmet didn’t seem like such a good idea anymore. That’s smart. But we also started to lock the gate and move our fun from the front yard to the backyard (or the TV room). We stopped meeting our neighbors; we became less friendly and more suspicious. There’s nothing more important than protecting your family, but isolation doesn’t equal protection. Connecting with your neighbors not only lets you know the personalities that surround you, it also provides you with surprisingly positive and helpful resources in times of need. So here’s your task: make a map of your neighborhood (or better yet, print one out! GoogleMaps can provide an aerial photo of most U.S. neighborhoods and all the houses in it) and "fill it out". Can you write down the names of the occupants of every household, including children, pets, and parents See how many you can do, and then take a walk through the neighborhood and meet people. Find out who has children at the same school as yours or which homes have adults who stay at home all day. Learn who is the friendliest and who is lonely and in need of a neighborly hand. You may even discover who has a magic touch at gardening, or a great movie or music collection, or the best "crisis" kitchen (just in case you need a cup of sugar, a splash of olive oil, or a mug of freshly imported darkroast Costa Rican coffee ). If you live in an apartment, do exactly the same. Learn with whom you share a floor or a building. Have a casual mixer or just go door to door and introduce yourself with a smile and a handshake. Sharing the true reason for your visit--that you feel it’s important to meet your neighbors and want them to know you as well--should dispel any suspicions. Whether you live in an urban high-rise, or a suburban tract, or on a rural lane, chances are your neighbors will be thrilled by your friendliness. Perhaps a few dinners will come out of it. Perhaps you’ll find a baby-sitter or a way to help a neighbor who is in need. And a year or two later, you may just find that your neighborhood has become a friendlier, more caring place.
点击查看答案
设随机变量X的概率密度为
，则X的数学期望EX=_____。
随着收入和价格的变化,消费者的均衡也发生变化。假如在新的均衡下,各种商品的边际效用均低于原均衡状态的边际效用,这意味着( )。
A. 消费者的生活状况没有发生变化 B. 消费者的生活状况恶化了 C. 消费者的生活状况有了改善 D. 上述情况均不确定
点击查看答案
某患者右下阻生智齿反复肿痛1年余。1周来右面下部出现肿胀伴开口受限。X线片示近中阻生，下颌升支弥漫性密度增高，其中可见局限性骨质破坏灶。升支外侧皮质无明显破坏，但密质骨外侧有骨质增生。可能的诊断为（）
A.牙源性中央性颌骨骨髓炎
B.牙源性边缘性颌骨骨髓炎
C.骨纤维异常增殖症
D.颌骨结核
E.成骨肉瘤
点击查看答案
误用检测技术主要分为（）、（）、（）、（）、（）几种类型。
点击查看答案
物业服务企业进入零售商业物业管理领域的目标归根结底是( )。
A．与开发商建立密切联系，考虑长线战略联盟B．树立品牌形象C．参与市场竞争D．要取得合理的经济回报
点击查看答案
燃气轮机提前进入排气温度控制的可能原因有哪些？
点击查看答案
海上交通工程学的第一本著作是何时何地出版的（）。
A . 1931年美国的华盛顿
B . 1972年英国的伦敦
C . 1971年日本的东京
D . 1976年荷兰的鹿特丹
点击查看答案
执行下列指令组后，标志位（OV)=______（P)=______。MOV A，#0B4HADD A，#00HSUBB A，#51H
执行下列指令组后，标志位(OV)=______(P)=______。MOV A，#0B4HADD A，#00HSUBB A，#51H
MOV A，#0B4HADD A，#00HSUBB A，#51H
ADD A，#00HSUBB A，#51H
SUBB A，#51H
点击查看答案
在平面直角坐标系中，已知A（1，0），B（0，-1），P是曲线上一个动点，则的取值范围是（）。
点击查看答案
对该患者饮食指导，最恰当的食物组合是（）
患者，女性，36岁，6个月前不全流产后月经一直不规律，近半年来经常头晕、心悸、体力活动明显受限，血清铁6.3umol /l ，骨髓铁染色显示细胞外铁减少，铁粒幼细胞13%。
点击查看答案
欧姆定律阐明了电路中电压、电流和电阻三者之间的关系。
A . 正确
B . 错误
点击查看答案
题目内容
（请给出正确答案）
参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
