Ca3(PO4)2+SiO2+C →高温 CaSiO3+P4↑+CO↑
有关原子结构,下列说法正确的是()
噪声已成为社会公害。下列措施中不能减弱噪声的是( )
下列有关细胞的说法中错误的是( )
Someone thinks if they have much money, they will have happiness. However, other people's opinions are t____ different.