光纤布放时不得受压,不能把光纤折成直角,需拐弯时,应弯成圆弧,圆弧直径不小于(),光纤应理顺绑扎。
A.60mm
B.80mm
C.100mm
D.120mm
参考答案:B
—How do you find Summer Shoes 2012?
— ! I think every lady will love it. [ ]
A. Very fascinating
B. By chance
C. Don't you know
D. Don't worry
在面向对象方法中,类之间共享属性和方法的机制称为______。