放射性固体废物
参考答案：
指任何含有放射性核素或被其沾污、其比活度超过国家规定限值的废物。
Only by shouting at the top of his voice, ___.
A．he was able to make himself hear
B．was he able to make himself hear
C．was he able to make himself heard
D．he was able to make himself heard
加油站应采取合理方式保证供暖，并制定相应的责任制和操作规程。严禁使用煤炉明火、煤油炉、电炉、电暖气等（）的取暖方式。
