航海英語海圖及海圖作業(yè)單項(xiàng)選擇題每日一練(2019.01.14)

來源：考試資料網(wǎng)

1 The chart symbol indicating that the bottom is coral is （）.

2 The short-long dashed magenta line around Gardiners Island marks（）.

3 The agonic line on an isomagnetic chart indicates the （）.

4 Solid green arrows on the main body of a pilot chart indicate （）.

5 The shoreline on charts generally represents the mean（）.