问题
单项选择题
All removals to be reassembled in order()of repairs.
A.upon commencement
B.on completion
C.before ending
D.after beginning
答案
参考答案:C
All removals to be reassembled in order()of repairs.
A.upon commencement
B.on completion
C.before ending
D.after beginning
参考答案:C