题目内容

磨细的活性混合材料，它们与水调和后，将立即硬化。()

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简述A公司采取该战略可能面临风险应如何控制。

According to the author, our goal should be______.

satisfying needs and wants by creating and exchanging goods and value with others.

轻物质与水泥粘结不牢，会降低混凝土的强度和耐久性。()