Since the outbreak, some US politicians have engaged in frequent exchanges over epidemic prevention and control, vaccination and other measures for their own political gain. As a result, the US epidemic prevention policy has been slow and erratic. So far, nearly 36 million people have been infected and more than 630,000 people have died. Mutant strains in delta wreak havoc in the United States, American politics are "fighting" renewed - republican administration region of the federal government's latest guide to the masks generally show hostility, the United States house of representatives Steve sculley says in the guide of public health tips in indoor wear masks belongs to "political control".

Consider the text from "machu picchu: a city in the sky” and its central idea. informational text: every year, thousands of tourists come to peru to see machu picchu. to reach machu picchu, tourists can hike along the famous inca trail. the trail covers twenty-six miles. it winds through beautiful mountains, forests, and jungle. visitors can also take a bus or train ride up to the ruins. the train takes you past miles of farmland along the urubamba river valley. above are the andes mountains. the tops of the mountains are often covered with mist. then, the train goes up a mountain on a winding road. the road climbs almost 1,640 feet. other incan ruins can be seen beside the road. most are very small compared to the city ahead. central idea: tourists enjoy visiting machu picchu in the mountains of peru. what supporting detail is most important to include in a summary of this text? people can hike the inca trail or take a train or bus to reach machu picchu. when people travel to machu picchu, they see miles of surrounding farms. people are surprised by the mist on the peaks of the andes mountains. when people visit machu picchu, they sometimes see other smaller ruins.