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【简答题】
围堰有土石围堰、()围堰、()围堰、钢筋混凝土板桩围堰、()围堰和木竹笼围堰等。
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举一反三
【简答题】Aggressive pedestrians are in fact as erous as careless drivers. They cause traffic accidents, injury and death. These erous walkers can be seen in any big city over the world. About 69% of la...
【单选题】下列对妥布霉素的描述错误的是:
A.
可用于结核病的治疗
B.
可用于肺炎杆菌的感染
C.
对铜绿假单胞菌作用强
D.
由卡那霉素B脱氧制成
E.
对耐庆大霉素的绿脓杆菌也有抗菌作用
【单选题】D Cities alarmed by deaths and injuries of pedestrians are taking efforts to make crosswalks safer for people on foot, especially seniors and children who need more time to cross streets. A pedestrian...
A.
Among 100 pedestrian deaths there were 21 people younger than 70.
B.
Old people are more likely to meet with accidents in crosswalks.
C.
Traffic accidents killed more old people than young people.
D.
About seven traffic accidents happened per hour.
【单选题】The first underground floor is set aside mainly for pedestrians and commercial facilities, while the second underground floor is planned for parking. {A; B; C}
A.
地下一层主要用于人行通道和商业设施，而地下二层计划用作停车场。
B.
地下一层仅用于人行通道和商业设施，而地下二层计划用作停车场。
C.
地下一层主要用作停车场，而地下二层用作行人通行和商业设施。
【简答题】Aggressive pedestrians are in fact as erous as careless drivers. They cause traffic accidents, injury and death. These erous walkers can be seen in any big city all over the world. About 69% o...
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