Which of the following was a result of the wildfire?

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问题 Which of the following was a result of the wildfire?
  
A fast-moving wildfire erupted Friday on the main interstate between Southern California and Las Vegas, forcing evacuations of 1,500 homes and the closure of the freeway. By late Friday, firefighters were gaining the upper hand on the fire, allowing officials to lift evacuation orders for half of the homes and reopen the freeway to holiday weekend traffic.
    The fire began Friday afternoon and quickly grew to 1,100 acres. The fire was fueled by winds up to 15 mph and 90 degrees temperatures, but by evening cooler weather and calmer winds helped firefighters control the blaze, U.S. Forest Service spokesman said.
    The fire destroyed two mobile homes and damaged two other structures. A firefighter suffered heat exhaustion and another suffered a medical-related injury. By evening, authorities determined it was safe for those who live on the north and west side of the fire to come back.
    Air quality officials predicted that smoke from the fire would cause problems for people with health sensitivities in the San Bernardino and San Gabriel mountain areas. The South Coast Air Quality Management District urged them to avoid unnecessary outdoor activities.
                                                             CNN Student News

选项 A、Half of the evacuated people are back to their homes.
B、Many people have moved to mobile homes.
C、Much of the fire is under control.
D、The fire might have caused air pollution.

答案B

解析 判断题。新闻中提到1 500户家庭撤离,并有一所移动房屋被烧毁:The fire destroyed two mobile homes and damaged two other structures。两者不能混为一谈。目前的状况是,由于温度的降低和风力的减弱,火势得到控制。政府取消了一半家庭的撤离令(to lift evacuation orders for half of the homes),重新开放公路,但预报空气质量可能对呼吸道敏感者会造成影响。因此答案为B。
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