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【单选题】
RFID属于物联网的( )A.
感知层
B.
应用层
C.
网络层
D.
业务层
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举一反三
【单选题】According to the passage, what could be an efficient way to use water?
A.
Adopting the system of water right owned by the government.
B.
Charging for water in places where water is becoming scarcer.
C.
Taking political measures to interfere with the water issue.
D.
Making it a free market for people to trade water-usage rights.
【单选题】Language change is ______.
A.
universal, continuous and to a large extent, regular and systematic.
B.
continuous, regular, systematic, but not universal.
C.
universal, continuous, but not regular and systematic.
D.
always regular and systematic, but not universal and continuous.
【简答题】These mine planets ,together with the sun ,make up what _______(call) our solar system.
【简答题】阅读下列程序片段。Public void test(){Try{sayHello();syste m.out .pri ntln("hello");}catch (ArrayIndexOut OfBoundException e){Syste m.out .pri ntln ("ArrayIndexOut OfBoundExcep-tion");}catch(Exception e){Syste ...
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