改错题Certain pesticides can become ineffective if
改错题Less than 400 Sumatran rhinos survive on the
改错题On the tournament roster are listed several
改错题In the United States one of the earliest
改错题The greatest road system built in the Americas
改错题The root systems of most flowering perennials
改错题Government officials announced that restrictions
改错题Child development specialists believe that, in
改错题Nearly unrivaled in their biological diversity,
改错题The thousands of volcanic islands and coral
改错题By devising an instrument made from a rod, wire,
改错题Together with Key Largo National Marine
改错题Due to poaching and increased cultivation in
改错题Developed by Pennsylvania's Palatine Germans
改错题Seismologists studying the earthquake that
改错题Schistosomiasis, a disease caused by a parasitic
改错题The completion in 1925 of the Holland Tunnel,
改错题While Hollywood makes films primarily for
改错题By offering lower prices and a menu of personal
改错题A recent court decision has qualified a 1998