A technician is trying to retrieve a screw that fell inside a case and is just out of reach. Which of the following is the BEST procedure to retrieve the screw?（）A、Turn the case upside down, shake gently and let the screw fall out.B、Use a shop vacuum to retrieve the screw.C、Use the hardware abstraction layer (HAL).D、Use an extension magnet.
A technician is trying to retrieve a screw that fell inside a case and is just out of reach. Which of the following is the BEST procedure to retrieve the screw?（）
- A、Turn the case upside down, shake gently and let the screw fall out.
- B、Use a shop vacuum to retrieve the screw.
- C、Use the hardware abstraction layer (HAL).
- D、Use an extension magnet.
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