铁路货物到站检查时,不发生自然减量的货物若重量磅差不超过一定比例范围即以为重量正确该比例为
A.0.10%
B.0.20%
C.0.30%
D.0.50%
正确答案是B
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Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
He is employed in a company which ( ) in paper products. (special)