A:TMV型蛋白质和HRV型RNA
B:HRV型蛋白质和TMV型RNA
C:TMV型蛋白质和TMV型RNA
D:HRV型蛋白质和HRV型RNA
眼球中下列哪个结构含有对光线敏感的细胞( )
—There's a piece of paper in it.