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题库 / Prep2007E1-SC-115
Many population studies have linked a high-salt diet to high rates of hypertension and shown that in societies where they consume little salt, their blood pressure typically does not rise with age.
shown that in societies where they consume little salt, their
shown that in societies that have consumed little salt, their
shown that in societies where little salt is consumed,
they showed that in societies where little salt is consumed,
they showed that in societies where they consume little salt, their
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(B) that引导的定语从句修饰就近的名词societies in societies （不能消耗）that have consumed little salt，逻辑意思不合理;their没有指代对象。
where 定语从句 或者 地点状语从句
the principal problem with (d) is the lack of tense parallelism. since "have linked" is in the present perfect, the present perfect is also compulsory for the other verb (i.e., it should be "shown", not "showed").
我觉得是 studies have linked .....and (have) shown....登录 或 注册 后可以参加讨论
这两个句子间没有连词啊
为什么是正确的
in societies where little salt is consumed是介词短语啊，where little salt is consumed是定语从句，修饰societies的。登录 或 注册 后可以参加讨论