A great deal has been done to remedy the situation.A．maintainB．improveC．assessD．protect
A great deal has been done to remedy the situation.
A．maintain
B．improve
C．assess
D．protect
相关考题：
Of the 32 categories, eight were produced only by the Irish dolphins.A．RightB．WrongC．Not mentioned
What are smart windows, according to Paragraph 4 ?A．Windows that are coated.B．Windows that are glazed.C．Windows the color of which can be changed.D．Windows that have many layers.
Which of the following about the African bush elephant and the African elephant is true?A．The WCU are interbreeding those elephants.B．They are interbreeding species.C．They are two genetically distant species.D．They depend on each other for survival.
Hearing problems may be alleviated by changes in diet and exercise habits.A．removedB．curedC．worsenedD．relieved