Silk from China found its way to India, the Middle East and Rome, spices 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
(答案→)A. in exchange for
B. in return
C. in change for
D. in need of
解析：短语辨析。A. 作为……的交换 B. 作为回报 C. 交换 D.需要。句意：丝绸从中国传播到印度、中东和罗马，用来交换中国所不知道的香料和玻璃。故选A。