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汽油加氢装置采用（）硫化，催化剂预硫化采用的硫化油是（）。

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设立国际机场由谁审批、国际机场资料由谁统一对外公布：（）。

A. 国务院民航总局
B. 民航总局、地区管理局
C. 地区管理局、省（市、区）局

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THDS-A探测系统安装时，内探探头中心与钢轨内侧的距离分别是（）

A. 265mm
B. 415mm
C. 365mm
D. 515mm

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铁塔螺栓型号正确，无松动，主体螺栓（包括单管塔、通信杆、拉线塔法兰螺栓，角钢塔主材螺栓）强度应不低于（）级。

A. 8.5
B. 8
C. 9
D. 8.8

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You are the administrator of a Windows 2003 domain The domain contains 20 Windows 2000 Professional computers and two Windows 2003 Server computers. For the domain, you want to set an account policy that locks any user's account after three consecutive failed logon attempts. You also want to ensure that only administrators will be able to unlock the account. Which two actions should you take?（） (Each correct answer presents part of the solution. Choose two)

A. Set the Account lockout duration value to 0.
B. Set the Account lockout duration value to 3.
C. Set the Account lockout threshold value to 0.
D. Set the Account lockout threshold value to 3.
E. Set the Reset account lockout counter after value to 0.
F. Set the Reset account lockout counter after value to 3.

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