45钢可用来制造()。
A、轴、齿轮、热锻模具
B、轴、齿轮、锯条
C、轴、齿轮、套筒
D、轴、齿轮、车刀
参考答案:C
The man ________to escape from prison, but he couldn't find an effective way.[ ]
A. managed
B. succeeded
C. attempted
D. offered