单选题Spring tides are tides that（）.Ahave lows lower than normal and highs higher than normalBhave lows higher than normal and highs lower than normalCare unpredictableDoccur in the spring of the year
单选题
Spring tides are tides that（）.
A
have lows lower than normal and highs higher than normal
B
have lows higher than normal and highs lower than normal
C
are unpredictable
D
occur in the spring of the year
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