单选题
The degree of downward slope of a beach depends on its composition of
deposits
as well as on the action of waves across its surface.
【正确答案】
B
【答案解析】[解析] 四个选项中：sentiment的意思是“情操，情感，情绪，观点，多愁善感”；sediment的意思是“沉淀物，沉积”；semester的意思是“学期”；segment的意思是“段，节，片断”。只有B项符合题意。