A:发现燃气泄漏应立即关阀门开窗通风
B:用亚硝酸钠腌渍鱼肉和蔬菜
C:霉变的大米、瓜子、花生等不能食用
D:室内起火应压低身体逃离火场
No. 1 Middle School
Don't run in the hallways
Don't bring food into the classroom.
Don't listen to music in class.
You have to wear a uniform.
No. 2 Middle School
Don't bring food into the classroom
Don't wear a hat in class.
Don't go into the classroom without the teacher.
No. 3 Middle School
Don't listen to music in the classroom.
Don't run in the hallways.
You have to wear sports shoes for gym class.
两篮苹果都是35个,如果从第一篮里拿出5个放入第二篮里,这时第一篮的苹果个数是第二篮的( )
一尊青铜,数行铭文,引发无限遐思:声势浩大的宗庙祭祀,尘土飞扬的战乱杀伐,觥筹交错的节庆盛宴……斑斑铜绿下,一串字符就是一段尘封的历史。这体现了( )
①精神产品离不开物质载体
②人类创造文化同时也享受文化
③文明只有靠文字才能传承
④精神力量可以转化为物质力量
如图是生活中一些物质的pH,下列说法正确的是( )