按这列数的排列规律在括号中填上适当的数。
1,2,2,4,8,32,( ),…
256
It is _______to work out this problem. You needn't go to the teacher.
A.enough easy
B.easily enough
C.easy, enough
D.very easily
热电偶分度的定义是什么?分度的方法有哪些?