With the development of industry, the problem of pollution was______from the very beginning, but no one cared about it until the

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问题 With the development of industry, the problem of pollution was______from the very beginning, but no one cared about it until the late 1800s.

选项 A、solved
B、absent
C、present
D、lacking

答案C

解析 结构识别此处考生需鉴别此句是系表结构、被动语态还是过去进行时的用法;此句意为:随着工业的发展,污染的问题从一开始就显现了;但是直到19世纪末才有人开始关注它。因此答案为C。
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