It can be inferred that railroad refrigerator cars came into use _________ . A. before 1860 B. before 1890 C. after 1900 D. after 1920

It can be inferred that railroad refrigerator cars came into use _________ .
A. before 1860
B. before 1890
C. after 1900
D. after 1920

Trả lời

Chọn B

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