题目内容

实验教育学的代表人物是()

A. 梅伊曼、拉伊
B. 狄尔泰、斯普朗格
C. 杜威、克伯屈
D. 鲍尔斯、金蒂斯

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产生()时,切削力波动小,加工表面光洁。

A. 带状切屑
B. 节状切屑
C. 崩碎切屑
D. 粒状切屑

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()

A. For the two vlans to communicate,a network statement for the trunk interface needs to be added to the OSPF configuration.
B. For the two vlans to communicate, a network statement for each subinterface needs to be added to the OSPF configuration.
C. Direct inter-vlan communication does not require OSPF
D. OSPF cannot be used if router-on-a-stick is configured on the router

加工脆性材料,刀具前角很小,低速大走刀时产生()。

A. 带状切屑
B. 节状切屑
C. 崩碎切屑
D. 粒状切屑

()的内表面有时有裂纹,外表面呈锯齿状。

A. 带状切屑
B. 节状切屑
C. 崩碎切屑
D. 粒状切屑

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