A：由4x－1≥0得4x＞1
B：由5x＞3得x＞3
C：由 得y＞0
D：由－2x＜4得x＜－2
The magazines are _______ easy that the children can read them well.
Touch and guess. ____
由方程x+t=5，y﹣2t=4组成的方程组可得x，y的关系式是（ ）
