题干
-- Where is my food, Tom?
-- Sorry, I just it.
A：did, eat up
B：has, ate up
C：Have, eaten up
D：will, eat up
答案(点此获取答案解析）
C
-- Where is my food, Tom?
-- Sorry, I just it.
A：did, eat up
B：has, ate up
C：Have, eaten up
D：will, eat up
的导函数图象如图所示，则下面判断正确的是