getting
setting
being
having
第1题：
The height of tide is the ______.
A.depth of water at a specific time due to tidal effect
B.difference between the depth of the water and the area's tidal datum
C.difference between the depth of the water and the high water tidal level
D.difference between the depth of the water at high tide and the depth of the water at low tide
第2题：
The period at high or low tide during which there is no change in the height of the water is called the ______.
A.range of the tide
B.plane of the tide
C.stand of the tide
D.reversing of the tide
第3题：
A.Direction d = NORTH;
B.Nav.Direction d = NORTH;
C.Direction d = Direction.NORTH;
D.Nav.Direction d = Nav.Direction.NORTH;
第4题：
大潮（spring tide）与小潮（neap tide）
第5题：
In the absence of a route leading from seaward，the conventional direction of buoyage generally follows ______．
A.an anti-clockwise direction around land masses
B.a clockwise direction around land masses
C.an anticlockwise direction around sea masses
D.a clockwise direction around sea masses
第6题：
The meaning of ebb tide is that ______.
A.tide is falling from high water to low water
B.tide is rising from low water to high water
C.tide is reaching to a highest level
D.tide is reaching to a lowest level
第7题：
Data relating to the direction and velocity of rotary tidal currents can be found in the ______.
A.Mariner's Guide
B.Tidal Current Tables
C.Nautical Almanac
D.Tide Tables
第8题：
Tide in this water area is________in direction ENE.
A.getting
B.setting
C.being
D.having
第9题：
潮汐（tide）
第10题：
定义枚举如下： public enum Direction{ EAST，SOUTH，WEST，NORTH } 下列正确使用该枚举类型的语句是哪项？（）