题干
Don't be discouraged. _________things as they are and you will enjoy the days of your life.
A：Taking
B：To take
C：Take
D：Take
答案(点此获取答案解析）
C
，则使函数
的定义域为
，且为奇函数的
的值为( )
里填上“＞”、“=”或“＜”。