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【多选题】
温度计不小心打碎后,散落了汞的地面应( )A.
撒硫黄粉
B.
洒漂白粉
C.
洒水
D.
20%氯化铁溶液撒细砂
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反馈参考答案：
举一反三
【单选题】Regarding the activities of DSC control unit when a message is received, which is false?
A.
When receiving DSC messages other than a distress， urgency and safety call， the control unit is able to provide for an automatic transmission acknowledging the call received.
B.
The information contained in the DSC message is decoded and displayed on the front panel
C.
The information may be stored in an internal memory
D.
The information may be stored in floppy disks.
【简答题】Encryption (加密) should be used when a secret message is online.
【单选题】Encryption should be used when a secret message is _____ online.
A.
developed
B.
delivered
【单选题】38Encryption should be used when a secret message is ____ online.
A.
derived
B.
deprived
C.
defined
D.
delivered
【单选题】Encryption should be used when a secret message is _____ online.
A.
contacted
B.
submitted
C.
delivered
D.
amazed
【单选题】Encryption should be used when a secret message is ____ online.
A.
derived
B.
deprived
C.
defined
D.
delivered
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