题目选项分析

In the seventh century B.C. the Roman alphabet was adapted from the Etruscan alphabet, which in turn had been adapted in the previous century from a western Greek alphabet, which itself had been adapted earlier in the same century from the Phoenician alphabet.

In the seventh century B.C. the Roman alphabet was adapted from the Etruscan alphabet, which in turn had been adapted in the previous century from a western Greek alphabet, earlier itself having been adapted in the same century from the Phoenician alphabet.