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【简答题】
简述Android系统的四种基本组件 Activity、Service、BroadcaseReceiver和ContentProvider各自的用途。
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反馈参考答案：
举一反三
【简答题】直流伺服电动机的控制方式包括____和____。
【单选题】As ______ who is a success in business, Mr．White has his own way to deal with various problems．
A.
one
B.
any
C.
all
D.
few
【单选题】Mr.White said the local bird was an interpreter because ______.
A.
the three Chinese birds didn't know English
B.
it was different from the Chinese birds
C.
he was making a joke
【单选题】-Who do you think will be in charge of __________ so important a conference? -Mr.White,mayor of the city. [ ]
A.
behaving
B.
conducting
C.
displaying
D.
controlling
【简答题】—__________ Mr．White was appointed director of our department. —Then we have two Whites now including ___________ Mr．White, the doorkeeper. A．The; a B．A; the C．A; 不填 D．不填; a
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