直接承受动力载荷重复作用的高强螺栓连接，当应力变化的循环次数≥5×104次时，应按有关规定进行（）验算。
A、疲劳
B、强度
C、轴力
参考答案：A
— Would you like some fruit ?
— No, thanks. I don't feel like anything now. [ ]
A. to have, to eat
B. having, to eat
C. having, eating
D. to have, eating
压缩机各缸冷却水回水温度不能超过（）℃
