对最终产品关税税率不变的情况下,如果对原料和中间产品征收关税税率越低,关税的有效保护作用越大。
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In the event of failure of an auxiliary such as a lubricating pump, the standby pump is started and put on the line automatically“the line” in this sentence refers to()
A. fuel manifold
B. lubricating pipe line
C. auxiliary engine pipe line
D. generator output line