A:by changing the way only
B:by only changing the way
C:only by changing the way
D:by changing only the way
①阳光下树的影子;
②水面波光粼粼;
③交警身上穿的警用背心在灯光照射下很亮;
④站在岸边能看到水里的鱼。
其中能用光的反射知识解释的是____(填序号)。
Miss Read is good ____________ music. She is good ____________ children in the music club.
已知函数f(x)=m﹣22x+1是定义在R上的奇函数.
(Ⅰ)求m的值;
(Ⅱ)求函数f(x)在(0,1)上的值域.