The Internet and Web groups revolving around international orphanages are increasingly being used to link adopted children with biological kin(亲属)．The site that Funks and Ramirezes used has a membership of 137 people，with 15 sets of twins and 7 sets of siblings whose relationships have been confirmed.

　　At a reunion at Chicago’s O’Hare International Airport，Mia Diamond Funk and Mia Hanying Ramirez shyly surveyed each other，and then reached for each other’s hand.

　　DNA tests establish an 85 percent probability that the girls are at least half­sisters.Scientists do not have a biological parent to test and reach a greater certainty，but given their ages and physical similarities，experts say it is likely they are fraternal twins.

　　Douglas and Holly Funk hope to bring their Mia to Miami in October. Both sets of parents say they are committed to staying in touch and often let the two sisters talk to each other on the phone.16．Both the adopted girls shared a first name ________.

　　A．because they both came from China

　　B．because of their physical similarities

　　C．because their US parents suspected they were twins

　　D．for no good reason

　　17．Why did the girls’ mothers meet on the Internet?

　　A．To compare photographs of the two girls.

　　B．To find the girls’ biological kin.

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