The following ____________ are not harmful effects of electric current on the human body.

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The dynamic environment monitoring system supports the alarm management function.

• A.True
• B.False

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The following air conditioning, which is comfort air conditioning?

• A.room dedicated air conditioning
  B Clean air conditioning
• B.Commercial air conditioners
• C.Medical air conditioning

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RS485 The interface only supports two-wire system, not four-wire system.

• A.True
• B.False

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When the sunroof actuator senses a smoke alarm, it cannot control the turning sunroof to open automatically.

• A.False
• B.True

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