1.The growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer’s meridian and differing from city to city, and to the establishment of regional times. (A) which was determined by when the sun reached the observer’s meridian and differing (B) which was determined by when the sun reached the observer’s meridian and which differed (C) which were determined by when the sun reached the observer’s meridian and differing (D) determined by when the sun reached the observer’s meridian and differed（E） (E) determined by when the sun reached the observer’s meridian and differing
我选的A
1.The increased popularity and availability of televisions has led to the decline of regional dialects, language variations which originate from diverse ethnic and cultural heritages and perpetuated by geographic isolation. (A) which originate from diverse ethnic and cultural heritages and perpetuated (B) that originated from diverse ethnic and cultural heritages and perpetuated (C) originated from diverse ethnic and cultural heritages and perpetuated (D) originating from diverse ethnic and cultural heritages and perpetuated（D） (E) originating from diverse ethnic and cultural heritages and perpetuating
