在切削时,车刀出现溅火星属正常现象,可以继续切削。()
参考答案:错
我国当前是处于城市化的阶段()。
A.程度很低的
B.稳定的
C.加速发展的
D.发展缓慢的
Table tennis is easy to learn, and, by the same token, boys don't need a lot of space to practice it.
A.by the same rule
B.symbolically
C.moreover
D.by logic