My suggestion is that Tom ______ there on time.[ ]
A. is
B. be
C. will be
D. has been
答案:B
一次函数y=kx+b的图象经过A(-3,0)和B(0,2)两点,则kx+b>0的解集是______
-24,-22,0,42,( )
A.-42
B.84
C.96
D.104