四时阴阳的消长变化,从冬至到立春为
A.阴消阳长B.重阴必阳C.阴长阳消D.重阳必阴E.由阳转阴
参考答案:A
生物圈中的大气圈、水圈、岩石圈是截然分开的.______.(判断对错)
— Is this your book, Alice?
— Yes, it is ______ book. [ ]
A. his
B. her
C. hers
D. my