This water has been specially (pure) ________ for use in cooking.
_____ is the production of pure water from sea water by evaporation and re-condensing.
A.Evaporation
B.Circulation
C.Condensation
D.Distillation
Dirty water must not be ______ with drinking water.
A.joined
B.linked
C.mixed
D.combined
From this selection we may conclude that the king's crown______.
A. moved less water than pure gold of the same size
B. moved more water than pure gold of the same weight
C. moved more water than pure gold of the same size
D. moved less water than pure gold of the same weight
From this passage we may conclude the King's Crown ______.
A.moved more water than pure gold of the same weight
B.moved less water than pure gold of the same weight
C.moved more water than pure gold of the same size
D.moved less water than pure gold of the same size
Now it is important that our drinking water ______ purified.
A.should be
B.is
C.will be
D.was
A、Clean drinking water,food and shelter.
B、Purified drinking water,food and shelter.
C、Purified drinking water,food and an education.
D、Clean drinking water,food and an education.
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