—Do you know __________ this dictionary belongs to? 

—Let me see. Oh, it’s __________. 

A．who, mine

B．who, me

C．whose, mine

D．whose, me

下列物质中，属于人造纤维的是                                        

A．腈纶毛线

B．兔毛毛线

C．光导纤维

D．粘胶纤维