Please assess the completion status of the following clinical trial:

Trial Title: Prophylatic Effect Preoperative Antibiotics With Mechanical Bowel Preparation in SSIs

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Older than 18 years old，~* Undergoing laparoscopic colorectal surgery due to malignancy.~Exclusion Criteria:~* No elective surgery~* Intra-abdominal infection~* Combination of other infectious surgery such as appendectomy, cholecystomy~* Sever comobidity such as uncontrolled hypertention and diabetes mellitus~* Peritoneal implantation and matastasis~* Radiotherapy history.~* Colorectal surgery due to benign lesions~* Allergic to antibiotics or PEG~* Preoperative dermatosis may interfere wound healing~* Long time application of corticosteroid~* Autoimmune disease may affect wound healing~* Patients refuse to enroll

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- oral antibiotics+mechanical bowel preparation (Type: EXPERIMENTAL): Liquid diet and polyethylene glycol with 2L water was administrated orally 1 day before surgery. A combination of neomycin 1g and metronidazole 0.2g every 6 hours was also administrated. Enteroclysis was conduted for patients on surgical morning.
- simple mechanical bowel preparation (Type: NO_INTERVENTION): Only liquid diet and polyethylene glycol with 2L water was administrated orally 1 day before surgery. Enteroclysis was conduted for patients on surgical morning.

Based on this trial design, predict the completion outcome and termination type (if applicable).