Two events have the tensions in recent days. A: hinged B: hid C: highlighted D: hanged

A snatch block is a（）. A: block used only with manila rope B: chock roller C: hinged block D: strong block used for short，sharp pull

The three hinged arch designed according to the rational arch axis can make the bending moment of each section in the arch zero under any load. A: 正确 B: 错误

The day he died was the hardest day of my life. My world had hinged on him. A: A. depended B: B. changed C: C. hanged D: D. hindered

According to Euler's column theory, the crippling load of a column is given by [img=128x27]18032d66b024c7f.png[/img]. In this equation, the value of μ for a column with both ends hinged, is ( ) A: 0.25 B: 0.5 C: 1.0 D: 2.0