下列说法正确的是 [ ]
A、均一、稳定的液体一定是溶液
B、溶液的体积等于溶质和溶剂体积之和
C、在泥水中泥是溶质，水是溶剂
D、溶液不一定无色
答案：D
The prices of new houses in our city have been ________than before, but they ______ well at
present. [ ]
A. higher, still sell
B. lower, are not still sold
C. higher, don't sell
D. cheaper, are not still sold
降低细胞含水量、增加糖和盐的浓度是植物对高温环境的生理适应。( )
