A、<span style="font-size:16px;font-family: 'Times New Roman','serif'">.</span><span style="font-size:16px;font-family:宋体">水平安装,流体自左向右流过</span>
B、<span style="font-family: 宋体; line-height: 24px; text-indent: 24px;">水平安装,流体自右向左流过</span>
C、<span style="font-size:16px;font-family:宋体">垂直安装,流体自下而上流过</span>
D、<span style="font-size:16px;font-family:宋体">垂直安装,流体自上而下流过</span>
查看答案