单选题
What is the purpose of the national survey?
[A] To collect data on sources of pollution.
[B] To identify pollution in rivers and lakes.
[C] To help control environmental pollution.
[D] To help control industrial wastes.
What is the purpose of the national survey?
[A] To collect data on sources of pollution.
[B] To identify pollution in rivers and lakes.
[C] To help control environmental pollution.
[D] To help control industrial wastes.
参考答案C
解析:
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A． lack of technolog
B． rapid economic, growt
C． unknown pollution source
D． shortage of manpowe
A． Census offices are set up by government department
B． A main centre receives reports from province
C． A database is set up for each provinc
D． Data will be reviewed and analyzed in mid-2009.
