The productsdescribed above have been subjected to （ ） treatment ofat least 8000baC for 30 minutes.
举一反三
- Women have been __________to unfair treatment for too long. A: related B: forced C: subjected D: resisted
- Nuclear power plants, ______ to some serious breakdowns, have become a center of controversy. A: having recently been subjected B: recently having been subjected C: have recently subjected D: recently have subjected
- The traffic was very heavy; otherwise I _______ here 30 minutes sooner. A: should have been B: would be C: would have been D: had been
- If you are a representative of the host, when should you arrive? A: Just on time. B: At least 10 minutes early. C: At least 20 minutes early. D: At least 30 minutes early.
- 检查之间的最短时间是两分钟。 A: The minimum time between checks is two minutes. B: Allow at least two minutes between successive checks. C: The least interval between successive checks is two minutes.