题目

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。China started making cartoon films almost at the same time as Japan. The first Japanese cartoon color film, Hakujaden, 【1】（adapt) from the famous Chinese legend of the white snake and released in 1958. Before that, The Magical Pen, a Chinese cartoon film, 【2】 was based on Chinese children's book Ma Liang With the Magical Pen, had won several international prizes. 【3】, in the following years China's animation (卡通) industry fell behind. But in recent years, China's animation industry h函数y=sin2xcos2x是(    ) A.周期为的奇函数                    B.周期为的偶函数 C.周期为的奇函数                    D.周期为的偶函数