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更多“pollution can be controlled by…”相关的问题
What does the second paragraph tell us？
A．Environmental pollution may have far-reaching consequences.
B．Any or all of these ecosystem functions may be impaired or destroyed by pollution.
C．Ecosystems perform. many important services for the earth's environment.
D．Pollution also has a great influence on natural resources.
A. contact
B. contact to
C. touch
D. touch to
What does the advertisement claim energy auditors can help people to do？
A．Reduce water consumption
B．Cut their energy bills in half
C．Choose the correct air conditioner
D．Improve the performance of existing appliances
Water pollution can't affect nature's balance in oceans, rakes and rivers.
A．Y
B．N
C．NG
The author uses the example of a rattle to show that ______.
A．in toy-making there is a continuity in the use of materials
B．even the simplest toys can reflect the progress of technology
C．it often takes a long time to introduce new technology into toy-making
D．even a simple toy can mirror the artistic tastes of the times
The author used the example of a rattle to show that ______.
A．in toy making there is a continuity in the use of materials
B．even the simplest toys can reflect the progress of technology
C．it often takes a long time to introduce new technology into toy making
D．even a simple toy can mirror the artistic tastes of the time
Water pollution can't affect nature's balance in oceans, lakes and rivers.
A．Y
B．N
C．NG
Air pollution can be as harmful to one\\\\\\\'s health___________
A．on the downwind side
B．during rush hours
C．in spring and autumn
D．to toxic air
E．between autumn and winter
F．as exposure to nuclear radiation
As more and more large factories are built in China, it can be infered that ______ .
A．China will face the big challenge of pollution
B．no pollution problem occurs in China
C．there will be more traffic accidents in China
D．the weather will become bad in China
