#單元測試五 <quiz> <question> <p>1.[單選](2分)Gazebo是一款什么工具?</p> <answer>A.調試</answer> <answer>B.可視化</answer> <answer correct>C.仿真</answer> <answer>D.命令行</answer> <explanation>你選對了!</explanation> </question> </quiz> <quiz> <question> <p>2.[單選](2分)rqt_graph可以用來查看計算圖，以下說法錯誤的是：</p> <answer>A.計算圖反映了節點之間消息的流向</answer> <answer>B.rqt_graph中的橢圓代表節點</answer> <answer correct>C.rqt_graph可以看到所有的topic、service和action</answer> <answer>D.計算圖反映了所有運行的節點</answer> <explanation>你選對了!</explanation> </question> </quiz> <quiz> <question> <p>3.[單選](2分)rosbag的描述錯誤的是：</p> <answer correct>A.rosbag可以記錄和回放service</answer> <answer>B.rosbag可以記錄和回放topic</answer> <answer>C.rosbag記錄的結果為.bag文件</answer> <answer>D.rosbag可以指定記錄某一個或多個topic</answer> <explanation>你選對了!</explanation> </question> </quiz> <quiz> <question multiple> <p>4.[多選](5分)RViz可以圖形化顯示哪些類型的數據？</p> <answer correct>A.激光 LaserScan</answer> <answer correct>B.點云 PointCloud</answer> <answer correct>C.機器人模型 RobotModel</answer> <answer correct>D.軌跡 Path</answer> <explanation> 以上類型數據RViz均可以圖形化顯示</explanation> </question> </quiz>