No pilot ladder shall have more than two replacement steps which are secured in position by a method _______ that used in the original construction of the ladder.
A.similar to
B.resembling
C.identical with
D.different from
正确答案是D
No pilot ladder shall have more than two replacement steps which are secured in position by a method _______ that used in the original construction of the ladder.
A.similar to
B.resembling
C.identical with
D.different from
正确答案是D