下列选项中，不属于清朝入关后制定的适用于少数民族地区法规的是()。
A. 《西藏禁约十二事》
B. 《番律条款》
C. 《西宁番子治罪条例》
D. 《盛京定制》
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单位要开一次座谈会，离开场还有半小时的时候。主持领导接到通知需要立刻离开．领导交由你主持。并记录与会人员的意见和建议，你该怎么办？
关于扫描器下列哪个说法是正确？()
A. 基于主机的扫描器支持通信加密
B. 基于主机的扫描器能扫描网络设备
C. 基于主机的扫描器能扫描网络拓扑
D. 基于主机的扫描器无法穿越防火墙
In opposing the 1970 Clean Air Act, the United States automobile industry argued that meeting the acts standards for automobile emissions was neither economically feasible nor environmentally necessary. However, the catalytic converter, invented in 1967, enable automakers to meet the 1970 standards efficiently. Currently, automakers are lobbying against the governments attempt to pass legislation that would tighten restrictions on automobile emissions. The automakers contend that these new restrictions would be overly expensive and unnecessary to efforts to curb air pollution. Clearly, the automobile industrys position should not be heeded. Which one of the following, if true, lends the most support to the automakers current position？
A. The more stringent the legislation restricting emissions becomes, the more difficult it becomes for automakers to provide the required technology economically.
B. Emissions-restriction technology can often be engineered so as to avoid reducing the efficiency with which an automobile uses fuel.
C. Not every new piece of legislation restricting emissions requires new automotive technology in order for automakers to comply with it.
D. The more automobiles there are on the road, the more stringent emission restrictions must be to prevent increased overall air pollution.
E. Unless forced to do so by the government, automakers rarely make changes in automotive technology that is not related to profitability.
If the airspace around centrally located airports were restricted to commercial airliners
A. Commercial airliners are already required by law to be equipped with extremely sophisticated radar systems.
B. Centrally located airports are experiencing overcrowded airspace primarily because of sharp increases in commercial-airline traffic.
C. Many pilots of private planes would rather buy radar equipment than be excluded from centrally located airports.
D. The number of midair collisions that occur near centrally located airports has decreased in recent years.
E. Private planes not equipped with radar systems cause a disproportionately large number of midair collisions around centrally located airports.
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