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【简答题】
无线传感器网络通信体系结构包括通信协议层和网络管理部分,网络管理部分则可以划分为 、 以及任务管理。
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反馈参考答案：
举一反三
【单选题】地形因子是生态因子的间接因子。地形因子直接影响到光、温度、水和土壤因子的重新组合和分配，对树木的生长发育的影响遵从生态因子的影响规律。以下属于地形因子的是()
A.
地形起伏
B.
海拔高低
C.
坡向坡度
D.
空气湿度
【单选题】What does the underlined word 'rumored' in the second paragraph mean?
A.
Confirmed by evidence.
B.
Showed by picture.
C.
Doubted and alleged.
D.
Discovered by scientists.
【单选题】听力原文： Psychologists have confirmed what writers have always believed: that books are literally the stuff of dreams. A survey has confirmed that people with a taste for fiction experienced dreams that ...
A.
People with a taste for science fiction.
B.
People who read thrillers.
C.
Women who like to read.
D.
Children who are able to read.
【判断题】As this is
an order of substantial size, we cannot safely undertake to complete its
manufacture in a month. ( 由于这是一笔大订单,我们没有把握在一个月内完成生产。 ) prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:...
A.
正确
B.
错误
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