If you hear the fire ______, leave the building quickly.A、warningB、alarmC、sign

游客2024-01-02 47

问题 If you hear the fire ______, leave the building quickly.

选项 A、warning
B、alarm
C、signal
D、bell

答案 B

解析 A. warning警告：B．alarm报警，警报，警报器；a fire alarm火警，火灾警报器，C．signal信号，预兆：D．bell铃，钟。

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