问题
单项选择题
缩写“DOT”指（）。
A.Department of Treatment
B.Direction of Transportation
C.Department of Transportation
D.Direction of Treatment
答案
参考答案：C
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缩写“DOT”指（）。
A.Department of Treatment
B.Direction of Transportation
C.Department of Transportation
D.Direction of Treatment
参考答案：C
