函数
在区间
上的最大值是（）．
A.A
B.B
C.C
D.D
参考答案：C
My uncle moved to London ______.
A．in the fifties
B．in the 1980s
C．in his fifty
D．in 1990s
Tom insisted that what he said _____ true, and insisted that he _____ punished.
A．be; should not be
B．was; not be
C．was; was not
D．should be; not be
在区间
上的最大值是（）．
在区间上的最大值是（）．