M7U1LivingwithtechnologyPeriod2Readinglanguagepoints主备:周清清Part1Previewsheet一、…,(wound)…,,无论我们在哪都能跟其他人保持联络。,,但直到1938年第一个彩电节目才播出。,though,until1951,。However,mostpeoplestillbenefitfromsatelliteTV,,大多数人仍然受益于卫星电视,因为当地的电视公司把从卫星接收器接收到的信号播送给附近的居民。Itallbeganin1877,whenThomasEdisonmadethefirstrecordingofahumanvoiceonhisinv
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