基岩海岸一般都会成为良好的浴场和海滨旅游胜地，最适宜开展3S（海水sea，阳光sun，沙滩sand）项目的旅游，如海南亚龙湾。
砂培法
砂丘（sand dune）
Good anchorage may be obtained anywany, generally mud and sand, in this water area. Vessel may have（）.
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
在当今世界，（），已经成为最重要的旅游资源组合，被称为“3S（Sun、Sand、Sea）”工程。
沙波（sand wave）
For（）commodities as oil, sand and timber, rail is cheaper than road.
用砂培法培养棉花，当其第4叶（幼叶）展开时，其第1叶表现出缺绿症。在下列三种元素中最有可能缺哪一种？（）
The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
3. What is the name of a place where its sand can sing?
37. From the letter we can learn that Sand River _______.
5. Why does the Resonant Sand Gorge sing song according to the legend?
as various as the sands of the sea
Why does Doree refrain from telling Mrs. Sands about the letter from Lloyd?
Why does Mrs. Sands not persuade Doree to refrain from seeing her ex-husband?
Why does Doree still visit Lloyd despite of the disapproval she senses in Mrs. Sands?
According the depiction, Mrs. Sands is a ().
Casting sand is expected to have ( )
Good anchorage may be obtained anywhere，generally mud and sand，in this water area Vessel may have______．
A rock and sand structure extending from the bank of the river toward the channel is known as a ().
The passage suggests that artificial sand is ______.
听力原文：W: I love the beach when the sand is fine and the water is just barely making waves.
下列是研究营养元素必需的精确而便捷的方法是 A 土培B 水培C 蛭石培D 砂培
