essential/vital/significant
举一反三
- Itis____thatstrongvibrationsmadeloudsoundsandweakvibrationsmakesoftsounds. A: vital B: evident C: essential D: frank
- Good financial accounts are vital to the success of any enterprise. A: total B: stable C: essential D: able
- It is a _____ change of view that fiber nowadays is considered to be an important part of a healthy diet. A: serious B: great C: significant D: vital
- Water<br/>is ____to plants. 植物的基本构成是水。 A: essential B: vital C: critical D: indispensable
- Of coal, a vital resource for the steel, electric power, and chemical industries, there are enough to last hundreds of years. ( ) A: lively B: good C: forceful D: essential