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【单选题】
检验龙门刨床侧刀架垂直移动时对工作台面的垂直度,若精度超差,应用( )检查立柱的侧导轨面与工作台面的垂直度,要求垂直度误差不大于0.04mm/1000mm。
A.
框式水平仪
B.
自准直仪
C.
光学平直仪
D.
经纬仪
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【简答题】召公曰:“是障之也。防民之口,甚于防川。川壅而溃,伤人必多;民亦如之。是故为川者决之使导,为民者宣之使言。故天子听政,使公卿至于列士献诗,瞽献曲,史献书,师箴,瞍赋,矇诵,百工谏,庶人传语,近臣尽规,亲戚补察,瞽史教诲,耆艾修之,而后王斟酌焉。是以事行而不悖。民之有口也,犹土之有山川也,财用于是乎出。犹其原隰衍沃也,衣食于是乎生。口之宣言也,善败于是乎兴。行善而备败,其所以阜财用衣食者也。夫民虑之...
【单选题】● Firewall is a ___(74)___ mechanism used by organizations to protect their LANs from Internet. (74)
A.
reliable
B.
stable
C.
peaceful
D.
security
【判断题】Inspection at the export country and Re-inspection at the import country is widely used in bulk commodity trade.
A.
正确
B.
错误
【单选题】● (74) is used to communicate with another computer over telephone lines. (74)
A.
Keyboard
B.
Modem
C.
Mouse
D.
Printer
【单选题】Joan is in the dorm, putting the final_____to her speech.(2010-74)
A.
details
B.
remarks
C.
comments
D.
touches
【单选题】Firewall is a (74) mechanism used by organizations to protect their LANs from the Internet. (74)
A.
reliable
B.
stable
C.
peaceful
D.
security
【判断题】“一带一路”是一个内涵丰富的大概念,由于它的边界不是完全确定的,它所涵盖的内容不是固定不变的。( )
A.
正确
B.
错误
【单选题】Firewall is a(74) mechanism used by organizations to protect their LANs from the Internet.
A.
reliable
B.
stable
C.
peaceful
D.
security
【单选题】“子庶民也”中“子”意思为( )。
A.
孩子
B.
子弟
C.
D.
幼小
【单选题】● (74) is a contiguous,numbered set of variables of a given base type,which can be used and passed to functions as a unit. (74)
A.
Record
B.
Array
C.
Parameter
D.
File
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