下列选项中属于自然语言处理研究对象的是()
A. 语音
B. 图像
C. 文本
D. 时间
下列选项中属于自然语言处理任务的有()
A. 问答
B. 文摘生成
C. 复述
D. 翻译
________ she has been working in China for only two years, she speaks fluent Chinese.
A. Where
B. If
C. Although
D. Until
Don't take the wrong turn before you _________ the railway station.
A. have
B. run
C. keeр
D. reach