在Excel中，分类汇总后的数据是不能隐藏的。
A、正确
B、错误

单项选择题During 1960s, the four musical films West Side Story, My Fair Lady, The Sound of Music and Oliver have won the Oscar Award for ____________.

多项选择题In a neural network, the processing unit is often divided into （ ）, according to different processing functions. A. Conversion unit B. Hidden layer unit C. Output unit D. Input unit