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【单选题】听力原文： Community service is an important component of education here at our university．We encouraged all students to volunteer for at least one community activity before they graduate．A new community p...
A.
To explain a new requirement for graduation.
B.
To interest students in a community service project.
C.
To discuss the problems of elementary school students.
D.
To recruit elementary school teachers for a special program.
【单选题】验钞机上发出的光能使钞票上的荧光物质发光，电视机的遥控器发出的光可控制电视机，对于它们发出的光，下列说法正确的是( )。
A.
它们发出的部是红外线
B.
它们发出的都是紫外线
C.
验钞机发出的是红外线，电视机遥控器发出的是紫外线
D.
验钞机发出的是紫外线，电视机遥控器发出的是红外线
【多选题】实施可持续发展战略,必须
A.
控制人口数量,提高人口质量
B.
合理利用资源,坚持开发与节约并重
C.
提高经济增长速度,增长经济总量
D.
加强治理环境污染,保护生态环境
【单选题】Located in New York City, Greenwich Village gained a reputation for bohemianism due to its populace of artists and freethinkers.
A.
desired
B.
promoted
C.
deserved
D.
acquired