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【单选题】
有一台量程为0~100°C,.2级的标准温度表,其最大绝对误差为________。A.
2℃
B.
1℃
C.
.2℃
D.
.02℃
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【单选题】Much of Africa moved right into the Iron Age, taking the basic technology and adapting it to local; conditions and resources. Unlike in the Americas, where metallurgy was a very late and limited devel...
A.
¨While American iron makers developed the latest furnaces, African iron makers continued using earlier techniques.
B.
¨Africans produced iron much earlier than Americans, inventing technologically sophisticated heating systems.
C.
¨Iron making developed earlier in Africa than in the Americas because of the ready availability of carbon and iron ore.
D.
¨Both Africa and the Americas developed the capacity for making iron early, but African metallurgy developed at a slower rate.
【简答题】事务具有4项特性__、__、__、__
【简答题】Benjamin Franklin and his inventions Benjamin Franklin was a very talented man. He invented man yuseful things. We still use some of them nowadays. In the 1740s Franklin invented the Pennsylvania Fire...
【判断题】yarn-env.sh配置文件是用来保证Hadoop系统能够正常执行HDFS的守护进程NameNode、Secondary NameNode和DataNode。
A.
正确
B.
错误
【简答题】All electronic computers are made up of four basic units although they may be of different kinds. ( ) 2. The moment I saw it clearly for what it was — a dead fish — I threw it away immediately....
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