液体在固体表面上自动展开的条件是（）

Almost（）we see（）in the paper about the latest develop-ment in the space race.

A、everyday...anything
B、every day...anything
C、everyday...something
D、every day...something

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某工厂炉渣的组成为：44.5%Si02，13.8%Ca0，36.8%F0，4.9%Mg0。试计算该炉渣的碱度和酸度。（原子量：Mg24、Si28、Ca 40、Fe 56、Mn 55、P31、Zn 65） 点击查看答案