【简答题】它位于...... It is ___________ in
【单选题】[8-15]Without doubt the radar is a highly important navigation aid. But duty officer shall aware that___when using it.毫无疑问雷达是一种非常重要的助航设备.但是值班驾驶员在使用的时候应该注意到它的距离读数比方位读数要精确.
A.
Its range reading is more accurate than its bearing reading 它的距离读数比方位读数要精确
B.
A low-lying coastline with a long, flat beach will show up properly on the radar 低洼海延长岸线、平坦的海滩会在雷达上正确显示.
C.
Radar is only aimed at collision avoidance.雷达仅应用于避免碰撞
D.
The use of radar is necessary only when visibility is restricted.雷达仅在能见度受限的时候使用
【单选题】依据需要的起源可将其划分为与社会性需要。()
【判断题】人工播种过程包括播种、覆土、镇压三个过程。
【简答题】它位于...... It is ___________ in
【判断题】人工播种过程包括播种 、覆土、镇压三个过程。