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【单选题】
智能火灾报警系统中报警设备分为自动感应报警设备和手动确认报警设备两种，下列属于自动感应报警设备的是______。A.
点电感烟探测器
B.
手动火灾报警按钮
C.
消火栓按钮
D.
防爆手动火灾报警按钮
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反馈参考答案：
举一反三
【简答题】单词拼写。 根据句意和汉语及首字母提示，补全下列各句。 1. Bankruptcy(破产)is a common p___ in an econormic reces sion. 2. The g___ shows temperature changed a little. 3. He s____ a large sum to the relief fund. 4. Wood,coal,oil a...
【单选题】Choose the best answer to the following question. 3) The company is on the verge of bankruptcy, and thousands of jobs are at ________.
A.
stake
B.
danger
C.
loss
D.
threat
【简答题】For rent 1 _____1_____ studio choice starting at $2,445 a month on Hill Street, Los Angeles. One bedroom and bathroom. 709—789 _____2_____ feet. Pets are OK. Call 07799 859685 for _____3_____. ...
【单选题】The draft financial statements of a limited liability company are under consideration. The accounting treatment of the following material events after the balance sheet date needs to be determined. (1...
A.
1 and 4 only
B.
1, 2 and 3 only
C.
2 and 3 only
D.
2 and 4 only
【简答题】若两个输入信号电压的大小（），极性相反，称为差模输入信号。
【单选题】The draft financial statements of a limited liability company are under consideration. The accounting treatment of the following material events after the balance sheet date needs to be determined. (1...
A.
1, 2 and 3 only
B.
1 and 4 only
C.
2 and 3 only
D.
2 and 4 only
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