Production _________ while safety checks are carried out.
举一反三
- Forced molting should be carried out at ( ) A: Late stage of egg production B: Before Birth C: The period of increasing laying rate D: Peak egg production
- Strict safety tests are carried out on food additives.句中，additive的含义是（ ）。 A: 添加 B: 附加 C: 加法 D: 添加剂
- Not all of those _____ takeovers continue to run the business they have bought. A: to be carried out B: carrying out C: being carried out D: carried out
- Under the premise of technological production, preventive maintenance should be carried out at least twice a year to master the operating status of the system and eliminate the hidden trouble.
- This project is said ______ right now. So far everything is going on quite smoothly. A: to have carried out B: having been carried out C: to have been carried out D: to be being carried out