A donkey boiler is also called ()
A. a main boiler
B. an auxiliary boiler
C. an exhaust gas boiler
/s/ and /θ/ can be distinguished by __________.
A. manner of articulation
B. place of articulation
C. vibration of the vocal cords
D. aspiration of articulation
一旦发生辐射事故，需尽快采取相应的应急()措施，尽量减少其实际后果、控制影响范围。
A. 处理
B. 处置
C. 响应
D. 控制
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