设<img src="/lqwvjeImg/ac/ac72022868d822a1e26d8803efb9c605.png"style="width:18px;height:24px;">,<img src="/lqwvjeImg/61/610920833c2b9ec882bfee2960ce8a37.png"style="width:20px;height:24px;">是非齐次线性方程组Ax=b的两个解向量,则下列向量中为方程组解的是( )<br>· <img src="/lqwvjeImg/ac/ac72022868d822a1e26d8803efb9c605.png"style="width:18px;height:24px;">-<img src="/lqwvjeImg/61/610920833c2b9ec882bfee2960ce8a37.png"style="width:20px;height:24px;"><br>· <img src="/lqwvjeImg/ac/ac72022868d822a1e26d8803efb9c605.png"style="width:18px;height:24px;">+<img src="/lqwvjeImg/61/610920833c2b9ec882bfee2960ce8a37.png"style="width:20px;height:24px;"><br>·<img src="/lqwvjeImg/5f/5f040535f225ddef8c91d3ff01a0393b.png"style="width:16px;height:41px;"><img src="/lqwvjeImg/ac/ac72022868d822a1e26d8803efb9c605.png"style="width:18px;height:24px;">+<img src="/lqwvjeImg/61/610920833c2b9ec882bfee2960ce8a37.png"style="width:20px;height:24px;"><br>· <img src="/lqwvjeImg/5f/5f040535f225ddef8c91d3ff01a0393b.png"style="width:16px;height:41px;"><img src="/lqwvjeImg/ac/ac72022868d822a1e26d8803efb9c605.png"style="width:18px;height:24px;">+<img src="/lqwvjeImg/5f/5f040535f225ddef8c91d3ff01a0393b.png"style="width:16px;height:41px;"><img src="/lqwvjeImg/61/610920833c2b9ec882bfee2960ce8a37.png"style="width:20px;height:24px;">