More than ______ languages besides English have native speakers in the United States — some of which are spoken by the indigenous peoples （about 150 living languages） and others imported by immigrants.
A、280
B、300
C、250
D、200
【正确答案】：B
【题目解析】：More than 300 languages besides English have native speakers in the United States — some of which are spoken by the indigenous peoples （about 150 living languages） and others imported by immigrants.参见教材P248。
