单选题More than one stage of evaporation can take place by admitting the sea water into chambers with progressively （） pressure in the flash evaporator.AlowerBhigherCthe lowerDthe higher
单选题
More than one stage of evaporation can take place by admitting the sea water into chambers with progressively （） pressure in the flash evaporator.
A
lower
B
higher
C
the lower
D
the higher
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