The main point of the passage is that the eighteenth and nineteenth centuries w

游客2024-01-05  24

问题  The main point of the passage is that the eighteenth and nineteenth centuries were a time when [br]  The word "unprecedented" in line 25 is closest in meaning to

选项 A、slow
B、profitable
C、not seen before
D、never explained

答案 C

解析
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