图示为两种液体盛于容器中、且密度 ρ2 ＞ ρ1 ，则 1 、 2 两测压管中的液面必为（    ）   

A、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;">2</span><span style="font-size:16px;font-family:宋体">管高于</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;">1</span><span style="font-size:16px;font-family: 宋体">管</span>

B、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;">1</span><span style="font-size:16px;font-family:宋体">管高于</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;">2</span><span style="font-size:16px;font-family: 宋体">管</span><span style="font-size:16px;font-family: &#39;Times New Roman&#39;">&nbsp;</span>

C、<span style="font-size:16px;font-family: &#39;Times New Roman&#39;">1</span><span style="font-size:16px;font-family:宋体">和</span><span style="font-size:16px;font-family:&#39;Times New Roman&#39;">2</span><span style="font-size:16px;font-family: 宋体">两管同高</span>

D、<span style="font-size:16px;font-family:宋体">无法确定</span>