It was sad to me that they,so poor themselves, bring me food.
A:might
B:would
C:should
D:could
关于假彩色卫星影像上地物颜色的说法正确的是( )。
①猪肉②鱼③米饭④青菜⑤苹果.
阿拉伯数字在我们的学习、工作和生活中运用相当广泛,它的发明者和传播者分别是( )