American English has so many ______ because the American people have come from all over the world. [

题目简介

American English has so many ______ because the American people have come from all over the world. [

题目详情

American English has so many ______ because the American people have come from all over the world.
[     ]
A. grammar
B. vocabulary
C. pronunciations
D. dialects
题型:单选题难度:偏易来源:0103 月考题

答案

D

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