题干
He _____ and his friends took her to hospital just now.
A：felt excited
B：felt sick
C：became happy
D：became interested
答案(点此获取答案解析）
B
He _____ and his friends took her to hospital just now.
A：felt excited
B：felt sick
C：became happy
D：became interested
上的函数
满足：
，当
时，
．下列四个不等关系中正确的是（ ）