A:to hel
B:helping
C:hel
D:helped
比较形近字组词
脑____ 输____ 任____ 都____ 判____
恼____ 愉____ 饪____ 储____ 叛____
设函数f(x)=1+log22-x,x<12x-1,x≥1,则f(﹣2)+f(log212)=( )
He thinks everything doesn't .