Different tastes among tourists from outside the mainland____the list of the country's attractions
A:top
B:shape
C:lead
D:show
﹣2的相反数是( )
对任意实数m,n,定义运算m*n=am+bn+cmn,其中a,b,c为常数,等号右边的运算是通常意义的加、乘运算.现已知1*2=4,2*3=6,且有一个非零实数t,使得对任意实数x,都有x*t=x,则t=( )
我会组词:
除____、____
伸____、____
甜____、____