— Are these books ______ ?
— No, they are not mine. They belong to _____.
A:your; her
B: yours; her
C:you; hers
D: yours; she
已知甲、乙、丙、丁四人的ABO血型各不一样,将上述四人的血分别滴入B型血的血清中,结果只有丙、丁的红细胞会发生凝集,又知在紧急情况下,丙只能接受少量乙的血.下列推测正确的是( )
You will not have a use for the magazines ____ ____.
地理环境各要素在南北方向产生有规律更替的主要原因是( )