EEA是乙酸乙烯-N-羟甲基丙烯酰胺共聚物的缩写。
参考答案:错
有几位学生遗失了一些物品,请根据以下信息为他们写完寻物启事的布告。
Peter: I lost a gold watch. If you find it, call me at 680-7432.
Jim: I found a computer game. My phone number is 512-8843.
Henry: I lost a set of keys. Who found them, please call 476-3539.
Sam: I found a notebook with the name “Kenvin Clark”. My phone number is 555-0287.
重大事故应急预案的核心要素共有()。
A.2个
B.3个
C.6个
D.8个