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I hope all the precautions against air pollution,()suggested

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I hope all the precautions against air pollution,()suggested by the local government,will be
I hope all the precautions against air pollution,as suggested by the local government,will be seriously considered here.
which 和as
为什么不是which
I hope all the precautions against air pollution,()suggested
as和which在引导非限制性定语从句时,都可以指代整个一句话.
as从句位置比较灵活 置前 置中 置后 都可以 而which只能放在后面
如果意思是 正如.,正像.就用as
如果意思意思是 这一点 这.就用which
位置记住 意思分清 as和which引导非限定从 且指代整句话 时 的 区别就清楚了.