.把弯曲的公路改直可缩短里程,这根据的数学原理是         

.把弯曲的公路改直可缩短里程,这根据的数学原理是         

 

答案

两点之间,线段最短,

解析:略

 

相关题目

— Where _____? — I got stuck in the heavy traffic. I _____ here earlier. A.
— Where _____? — I got stuck in the heavy traffic. I _____ here earlier. A. did you go; had arrived         B. have you been; would have been C. were you; would come      
With so many children ____round the table, the food disappeared_______. A.se
With so many children ____round the table, the food disappeared_______. A.seating, at no time         B.seated, in no time C.seated, at no time          D.seating, in no t
 It was a pity that the great writer died      his works unfinished. A. fo
 It was a pity that the great writer died      his works unfinished. A. for             B. with             C. from         D. of
为了调查喜爱运动是否和性别有关,我们随机抽取了50名对象
为了调查喜爱运动是否和性别有关,我们随机抽取了50名对象进行了问卷调查得到了如下的列联表:若在全部50人中随机抽取2人,抽到喜爱运动和不喜爱运
“螳螂捕蝉,黄雀在后”,下列可以体现这一现象的正确食
“螳螂捕蝉,黄雀在后”,下列可以体现这一现象的正确食物链是     A.螳螂→蝉→黄雀    B.树→螳螂→蝉→黄雀     C.蝉→螳螂→黄雀   
人体内备用的能源物质是(   )A、蛋白质        B、无
人体内备用的能源物质是(   )A、蛋白质        B、无机盐        C、脂肪    D、糖类 
王勇不小心手指被利刃划破,疼痛难忍,但他仍然紧咬牙关
王勇不小心手指被利刃划破,疼痛难忍,但他仍然紧咬牙关不吭声。此过程中神经冲动的传导路径是    (    )     ①脑  ②脊髓  ③手部感受器 
生物可以生活在生物圈中的任何地方。
生物可以生活在生物圈中的任何地方。

最新题目