The Taoist Yi-Yang principle is also applicable in the preparation of food for health improvement, disease precaution and treatment.

AutoCAD中，系统默认的文件自动保存间隔时间是（）。Ho...r safety precaution?

As a safety precaution, all city cab drivers carry only enough money to make change for a _______ bill.

______ Which of the following words contains a number prefix? A: precaution B: disunite C: bicycle D: antiwar

The polar explorers took every _____ to minimize the dangers of their trip. A: action B: transportation C: reservation D: precaution

Of the following prefixes, ______ is a prefix of degree. A: un- (unwrap) B: over- (overweight) C: pre- (precaution) D: anti- (anti-nuclear)

As a _______, don’t leave your mail in the mailbox for too long. A: trash B: precaution C: fraud D: deception

n. something that is done in advance in order to prevent problems or to avoid danger A: profession B: precaution C: portrait D: property

Although_____was not successful, the novel marked the beginning of a career of 30 years. A: Precaution B: The Spy C: The Last of the Mohicans D: The Pathfinder

14. It was the first time that such a ( ) had to be taken at a British nuclear power station. A: presentation B: precaution C: preparation D: prediction