题目内容

What's more, for every coincidence discovered by a pair of identical twins raised apart, a skeptic could point to a vast number of ____(未被发现的) differences.

查看答案
更多问题

But the differences would go ____(未经报道的) since they would not surprise anyone.

Both drove the same model blue Chevrolet, liked ____(木工手艺), chewed their fingernails, and owned dogs named Toy. Both started having late-afternoon headaches at the age of 18.

一对渐开线直齿圆柱齿轮的啮合线相切于______。

A. 两分度圆
B.两基圆
C. 两齿根圆
D. 两齿顶圆

已知一渐开线标准直齿圆柱齿轮,齿数 z=25,齿顶高系数 ha * =1,齿顶圆直径 Da=135mm,则其模数大 小应为________。

A. 2mm
B. 4mm
C. 5mm
D. 6mm

答案查题题库