组成图像矩阵中的基本单元的是()
A.体素
B.像素
C.元素
D.灰阶
E.视野
参考答案:B
Was it at the school ______ was named after a hero ______ he spent his childhood?
A.which; that
B.where; that
C.that; where
D.which; where
从1994年1月1日起,我国实行()制,取消外汇分成。
A.外汇收入转汇
B.外汇收入换汇
C.外汇收入结汇
D.外汇收入售汇