Mean high water is the average height of ______.
A.the higher high waters
B.the lower high waters
C.the lower of the two daily tides
D.all high waters
正确答案:D
平均高潮是所有高潮潮高的平均值
Mean high water is the average height of ______.
A.the higher high waters
B.the lower high waters
C.the lower of the two daily tides
D.all high waters
正确答案:D
平均高潮是所有高潮潮高的平均值