Listening to loud music at rock concerts caused hearing loss in some teenagers.[ ]

Look out! The ceiling _____ l down

n moved forward andlooked over the edge,shrinking his shoulders.

填入下面横线处的词语，最恰当的一组是 ①在北大中文系读书的几年中，他深受传统文化的＿＿＿，毕业后，他先后从事的几种工作，也一直与文化、学术紧密相关。②眉山苏氏一门才俊当然不错，而“苏小妹三难新郎”纯属虚构，然而这个浪漫故事却至今＿＿＿。③长江三峡大坝建成后，提高了上游水位，＿＿＿提高了水的重力势能，这些能量可以用来发电。

In many places in China， the old over 90 ___________not only by their family but also by the government.