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【判断题】
电涡流探头直径越大,探测范围越大,分辨率越差,灵敏度也降低A.
正确
B.
错误
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【简答题】From the first half of the 16th century, ______began to develop into a flowering of literature and then England became 'a nest of singing birds'.
【简答题】A black-and-white photo from the early 1900s shows a woman in rural America, her face covered with a sinister white mask. In another, from 1930, a tall figure stands in a field tightly wrapped in what...
【简答题】From the first half the the ___________ century, the English Renaissance began to develop into a flowering of literature and then England became _____________________________.
【多选题】公民的国防义务是指由宪法和法律规定的公民在国防活动中必须履行的责任,由国家强制力保证其落实。公民的国防义务包括( )
A.
兵役义务
B.
接受国防教育的义务
C.
建设国防设施的义务
D.
支持国防建设、参与军事活动的义务
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