At first, I felt a slight shaking _____ my body.[ ]
A. through
B. on
C. at
D. in
答案:A
下面四项选择中,()不符合油罐大修的条件.
A.罐体、缸顶或缸底腐蚀严重超过允许范围,需要动火检修
B.液位计失灵,油位过高
C.罐体保温层损坏在1/3以上
D.油罐基础不均匀下沉超过油罐直径的1%