单选题 Petrazzini's main concern is not so much cultural homogenization associated with the spread of the Internet, but an exacerbation of the gap between young and old and between spread of the Internet

A、 uniformity
B、 discrepancy
C、 convention
D、 distinction.

【正确答案】 A

【答案解析】解析：A．uniformity一致，均匀，无差异；B．discrepancy不相符之处，矛盾；C．convention习俗，惯例；D．distinction显赫，差别。