How are you?[ ]
A. How are you?
B. Fine, thank you.
答案:B
直线y=a与函数y=x3-3x的图象有三个相异的交点,则a的取值范围为 ( ).
A.(-2,2)
B.[-2,2]
C.[2,+∞)
D.(-∞,-2]
—I failed again. I wish I _________ harder.
—But you _________.
A.had worked; hadn’t
B.worked; don’t
C.had worked; didn’t
D.worked; didn’t