接触网作业车的车钩在连挂时，两钩舌高差范围应在85m以内。
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设一个集合A={3，4，5，6，7}，集合B={1，3，5，7，9}，则A和B的并集中包括有（）个元素，A和B的交集中包含有（）个元素，A和B的差集中包含有（）个元素。
You need to design a permission structure for registry objects that enables the legacy application at the resorts to run. Your solution must comply with the written security policy. What should you do？（）
A. Create a GPLink the GPO to the OUs that contain computer accounts for computers that run the legacy application， Use the GPO to give the Domain Users security group full control on the partitions of the registry that the legacy application uses
B. Create a GPLink the GPO to the OUs that contain computer accounts for computers that run the legacy application. Use the GPO to give the Domain Users security group full control on the HKEY_USERS partition of the registry
Create a GPLink the GPO to the OUs that contain computer accounts for computers that run the Legacy application. Use the GPO to make all users who require access to the application members of Local Administrators group on each computer
D. Create a GPLink the GPO to the OUs that contain computer accounts for computers that run the Legacy application. Use the GPO to give all users who require access to the application full control for the Ntuser.dat file
汇划业务根据处理的方式不同分为（）
A. 单一模式
B. 分散模式
C. 集中模式
D. 复合模式
活塞油环的开口在装配时必须错开（）。
A. 90°
B. 150°
C. 240°
D. 180°
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