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【单选题】
( 2018· 广西中考真题) 下表是 NaCl和Na 2 CO 3 在不同温度下的溶解度,下列说法中不正确的是( ) 温度/°C 0 10 20 30 40 溶解度/g NaCl 35.0 35.5 36.0 36.5 37.0 Na 2 CO 3 6.0 10.0 18.0 36.5 50.0A.
两种物质溶解度相等的温度在 30℃
B.
生活在盐碱湖附近的人们习惯 “夏天晒盐、冬天捞碱”
C.
40℃时，5gNaCl中加10g水可得溶质质量分数为26.3%的溶液
D.
40℃时，9g Na 2 CO 3 中加20g水，充分溶解后再降温到10℃，析出固体的质量为7g
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A.
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B.
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C.
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D.
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【单选题】The best title for this passage might be______.
A.
A Company under Fire
B.
A Debate on Moral Decline
C.
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D.
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