A swift current occurring in a narrow passage connecting two large bodies of water which is produced by the continuously changing difference in height of tide at the two ends of the passage is called a(n)（）.
A swift current occurring in a narrow passage connecting two large bodies of water，which is produced by the continuously changing difference in height of tide at the two ends of the passage，is called a（）.
In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)（）.
There is actually an overlapped area of（）ocean regions somewhere in Western European Waters.
Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in （）.
Which area is the most commodities shipped in water transport?（）
（）in this area is prohibited.
One of the causes of ocean currents is density differences in the water. This is true because （）.
Good anchorage may be obtained anywany, generally mud and sand, in this water area. Vessel may have（）.
During this season each year the visibility in the abovementioned area is（）.
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the（）.
（）is prohibited in this area.
Tide in this water area is（）in direction ENE.
There is actually an overlapped area of（）ocean regions somewhere in Western European waters.
A current will develop between areas of different density in ocean waters. If you face in the same direction the current is flowing，the water of（）.
Many families in this area live close to starvation and Jack’s family is no _______.
．This tree is too _______ to be planted in this area．
Rainfall．is the main__________of water supply in that area．
Good anchorage may be obtained anywhere，generally mud and sand，in this water area Vessel may have______．
We are large dealers in textiles and believe there is a promising market in our area for moderately priced goods of this kind mentioned.
There is a（n)（)need for env ironmental protection in industrialized areas of this count
Now soil in this area is ______ than it used to be. Something must be done to it.
—-Walmart is planning to open a new store in this area.（）
