不懂！OG 18-109黑人工会

109.

The best answer is B. Lines 16-19 of the passage state that the existence of a Pullman-owned

union “weakened support among Black workers for an independent entity” such as Randolp’s

Brotherhood of Sleeping Car Porters. Thus, the passage suggests that some porters did support the

Pullman Company union. Lines 16-19 directly contradict A, which implies virtually no support of

the Pullman company union. Choice C is incorrect because the passage does not suggest anything

about Pullman employees other than porters. Choice D is incorrect: in fact, the passage suggests

that the porters’ attitude was less positive after Randolph’s union achieved recognition in 1935.

Choice E is incorrect because the passage nowhere suggests that the general skepticism of Black

workers had no effect on their response to the Pullman Company’s union.

以上是og对109的解释，og提到的L16-19中没有porter呀，第三段中才出现porter的，如何解释呀？

像这种题该如何做呀？请提供点思路，谢谢！