[attachimg]2466[/attachimg] 红色是正确答案,怎么能看出binding arbitrition 更好呢? 我觉得选项B倒更正确些, 从最后一句,"Strikes should be outlawed only for categories of public-sector workers for whose services no acceptable substitute exists".可以看出,只要outlaw的,都符合"no acceptable substitute exists"的条件.