Cement is a powder with the property of setting into a hard mass after it has been mixed with water.
Cement is a powder with the property of setting into a hard mass after it has been mixed with water.
发布时间：2025-03-07 09:53:58
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- 1.Cement is a powder with the property of setting into a hard mass after it has been mixed with water.
- 2.Setting and hardening are caused by the chemical reactions between the cement and water.
- 3.18 判断 Setting and hardening are caused by the chemical reactions between the cement and water.
- 4.Powder when mixed with water __________.
- 5.After many years of hard work, China's export market structure has been fundamentally changed.
- 6.Marriage has always been difficult. why has it become so hard for couples to stay together in today’
- 7.Tom has been out of work. He is ________ a new job now.
- 8.The company has ( ) a new formula for setting the dispute.
- 9.After being under for one minute, he emerged _____ the water.
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