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【单选题】
NC加工程序是NC机床自动加工零件的( )。
A.
输入介质
B.
存储载体
C.
加工指令
D.
轨迹路线
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参考答案:
举一反三
【单选题】In the process of _____, liquid changes into gas.
A.
evaporation
B.
frosting
C.
condensing
D.
compressing
【简答题】Intellectualproperty is the name commonly given to a group of separate intangible propertyrights,such asA. Trademarks B. Designs C. Plantvarieties D. Layoutdesign of integrated circuits E. Copyright
【单选题】净料单位成本是()的比值。
A.
挣料重量与出材率
B.
毛料单价与出材率
C.
毛料重量与出材率
D.
净料单价与出材率
【单选题】钢筋混凝土肋梁楼板的传力路线为( )。
A.
板→主梁→次梁→墙或柱
B.
板→次梁→主梁→墙或柱
C.
板→墙或柱
D.
板→梁→墙或柱
【判断题】某毛料2500克,出材率80%,此料的净重应为3250克。()
A.
正确
B.
错误
【单选题】Oxygen is often stored as a liquid, although it is used () as a gas.
A.
primarily
B.
seldom
C.
rarely
D.
sometimes
【单选题】净料单位成本是( )的比值。
A.
净料重量与出材率
B.
毛料单价与出材率
C.
毛料重量与出材率
D.
净料单价与出材率
【单选题】加工前原料的重量是( )之比。
A.
净料重量与出材率
B.
损耗重量与出材率
C.
净料重量与损耗率
D.
毛料重量与损耗率
【单选题】The difference between a liquid and a gas is obvious under the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fill it ...
A.
The Properities of Gases and Liquids.
B.
What Fluids and Gases Are Made of.
C.
New Uses for the Gas and the Liquid.
D.
New Theories about Fluids and Gases.
【简答题】伪分布式安装时设置hdfs-site.xml文件,问号处应填的数字是: dfs.replication ? dfs.namenode.name.dir file:/usr/local/hadoop/tmp/dfs/name dfs.datanode.data.dir file:/usr/local/hadoop/tmp/dfs/data
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