When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________

A、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
B、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
C、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
D、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
E、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
F、When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
G:When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________
H:When there are two high and two low waters each tidal day with relatively small inequality in the consecutive high and low water heights, it is________