[问答题]<p><span style="color: rgb(255, 0, 0);"><strong>四、【<strong style="color: rgb(255, 0, 0); white-space: normal;">应用题</strong>】</strong></span></p><p><span style="color: rgb(255, 0, 0);"><span style="color: rgb(0, 0, 0);"><img src="/VOD/UF/image/20190819/6370180868521509714479706.png" title="image.png" alt="image.png"/></span><strong><span style="color: rgb(0, 0, 0);"></span><br/></strong></span></p><p><span style="color: rgb(255, 0, 0);"><span style="color: rgb(0, 0, 0);"><img src="/VOD/UF/image/20190819/6370180869648079425570185.png" title="image.png" alt="image.png"/></span></span></p>