题目内容
完成B句，使其与A句意思相同或相近。（每空一词）A.Even though the pure water is something that gives seawater its main properties, the salinity of seawater affects both its weight and freezing point.
B.Even though the pure water is ______ gives seawater its main properties, the salinity of seawater has ______ ______ both its weight and freezing point.
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解析：
| what; effect on。effect on对…有影响
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