题目内容
消防控制室收到的信号中,火灾报警信号优先级最高。
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If someone says: “How are you?”, you can say: “I'm good.”
If you are feeling just okay, or so-so, you can say: “Not bad.”
A more casual and much more common way to ask is “Hey, how's it going?” If you are not feeling good, you cannot say: “Not so good.”
1、粗骨料强度检验方法可用（）和压碎指标值表示。
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