旅客将宠物小狗带入车内，小狗伤害其他旅客，由（）负责。
A.列车员
B.携带者
C.承运人
D.工作人员
参考答案：B
So far all cloned animals have suffered from some different serious disorders，________ dying soon after birth.
A．many of which
B．many of whom
C．many of them
D．many of that
节点详图上只标明了尺寸，没标单位，其单位应是（）。
A.mm
B.cm
C.m
D.km
