During the process of the project supervision, which of the following acts belong to the service engineer’s on-site work responsibilities? (Multiple choice)
A . Inverter installation supervision, training, documentation, etc.
B . Submit detailed system operation steps to the customer responsible person before major events such as equipment upgrades occur.
C . Feedback on the progress of project delivery to Huawei
D . On-site inverter installation, adjustment and related wiring work
Answer: ABC