我们的航空母舰试航了，大长了国人志气，一个航母战斗舰包括航空母舰、驱逐舰、护卫舰和潜艇．“瓦良格”号航母没有帮助飞机起飞的弹射装置，为了帮助起飞采用了以下的措施；一是在飞机跑道前端有向上翘起的滑跃式甲板；二是在飞机的尾喷管后安装一块阻挡喷出的气体的挡板，如图，在下面有关说法中不正确的是（　　）

A

    The Double Ninth Festival is a traditional (传统的）Chinese festival. It usually comes in October or November. On this day，people always wear the zhuyu (茱萸）plant. They usually climb mountains. Sometimes they go to see flower shows. The Double Ninth Festival is a festival for old people. People usually visit their parents and grandparents on this day. They often eat Double Ninth cakes together.