Custody liquidation post and custody supervision post cannot be done by one person at the same time, because the job responsibilities are different and the nature of the work is different.

1. Different job responsibilities: the custody clearing post is mainly responsible for dealing with clients' transaction settlement, fund settlement, share transfer and asset evaluation, while the custody supervision post is mainly responsible for supervising the custody business of securities companies to ensure that the custody business meets relevant regulations and standards. These two positions have different job responsibilities and require different professional knowledge and skills.

2. The nature of the work is different: the custody clearing post needs to handle a large amount of transaction settlement data, and it needs to be highly careful and patient to ensure the accuracy and timeliness of the data; Custody supervision post needs to have strong supervision and management ability to ensure the compliance and stability of custody business. The nature of these two positions is also different, and they need to have different working abilities and qualities.