Silk from China found its way to India, the Middle East and Rome, spices(香料) and glass, which was not known to China.
A. in exchange for
B. in return
C. in change for
D. in need of
网友回答
A. in exchange for
B. in return
C. in change for
D. in need of
解析：短语辨析。A交换；B回报；D需要；没有C这个词组。句意：来自中国的丝绸来到了印度，中东和罗马。交换香料和玻璃。这些东西在中国知道的人很少。故A正确。