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环境监测的手段有哪些？
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环境监测的对象有哪些？
固体废物是指在生产、生活或日常活动过程中被人们抛弃的，没有利用价值的固态物质。
What was Churchill's attitude towards Britain's home defense against invasion?On the one hand, he was _________________ because the British military forces concentrated in Britain were stronger than ever. On the other hand, home defense still needed ____________, as Britain must fight back and fight overseas, which would draw troops away from Britain.
Who were the targets of the measures of increasing stringency?________________and suspicious characters of other nationalities, British subjects who may become a danger or a__________________ should the war be transported to the United Kingdom, and the Fifth Column.
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