根据《锅炉压力容器焊工考试规则》的规定,()用无损检验来代替弯曲试验。
A.可以
B.不可以
C.必要时可以
D.厚板可以
参考答案:B
I often go to school _____ foot, but I had to go to school _____ taxi yesterday because of rain. [ ]
A. by; by
B. on; in
C. on; by
D. with; on
简述秦至唐代法律形式的演变