问题
选择题
下列各图所示意的地质构造或地貌景观中,主要由于外力作用形成的是 ( )
答案
答案:C
本题考查地质作用。图示A表示褶皱为内力作用形成;B表示断层,为内力作用形成;C表示河口三角洲为流水沉积形成;D表示火山喷发,为内力作用形成,故选C项。
下列各图所示意的地质构造或地貌景观中,主要由于外力作用形成的是 ( )
答案:C
本题考查地质作用。图示A表示褶皱为内力作用形成;B表示断层,为内力作用形成;C表示河口三角洲为流水沉积形成;D表示火山喷发,为内力作用形成,故选C项。
阅读下面对话,从方框中选择五个最适当的句子完成对话(其中有2个选项是多余的)。 Li Yang: Good morning, Mathew. Mathew: Good morning, Li Yang. 小题1: Li Yang: There's still smog(雾霾)today. We'll have to go to school with face masks(口罩). Mathew:小题2: According to the news, PM2.5 pollution is the main problem with air pollution. LiYang: Yes, and air pollution has done harm to people's health. Mathew: So the Chinese government and Chinese people must take action to fight it. Ji Yang:小题3: Mathew: Since PM2.5 is mainly caused by vehicles(机动车)and factories, cars with large emissions(排放)should not be allowed and factories should be closely watched. LiYang:小题4: We hope that more and more people will join us in making the blue skies return for good. Mathew:小题5:
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