[单选题]横越停有机车、车辆的线路时，先确认机车、车辆暂不移动，然后在-我要搜题网

[单选题]低压电气带电工作使用的工具应有（）。
A.绝缘柄
B.木柄
C.塑料柄
D.金属外壳
E.略
F.略

[单选题]通货膨胀作为一种经常性现象，出现在()。
A.信用货币制度下
B.实物货币制度下
C.银本位制度下
D.金本位制度下

[多选题]出现石油火灾时，可以使用下列哪些灭火剂进行灭火？
A.泡沫
B.干粉
C.二氧化碳
D.水

[单选题]使瞳孔缩小的神经是( )
A.视神经
B.动眼神经
C.迷走神经
D.交感神经
E.副神经

[不定项选择题]共用题干 Energy and Public Lands
The United States boasts substantial energy resources. Federal lands provide a good deal of US energy production,the US Department of the Interior manages federal energy leasing （租赁）both on land and on the offshore Outer Continental Shelf Production from these sources amounts to nearly 30 percent of total annual US energy production.
In 2000,32 percent of US oil,35 percent of natural gas,and 37 percent of coal were pro-duced from federal lands,representing 20,000 producing oil and gas leases and 135 producing coal leases. Federal lands are also estimated to contain approximately 68 percent of all undis-covered US oil reserves and 74 percent of undiscovered natural gas.
Revenues from federal oil,gas,and coal leasing provide significant returns to US taxpayers as well as State Government. In 1999,for example,$553 million in oil and gas revenues were paid to the US Treasury,and non-India coal leases accounted for over$304 million in revenues,of which 50 percent were paid to State governments. Public lands also play a critical role in energy delivery. Each year , federal land managers authorize（许可）rights of way for transmission lines , rail systems , pipe-lines,and other facilities related to energy production and use.
Alternative energy production from federal lands falls behind conventional energy pro-duction , though the amount is still significant. For example , federal geothermal（地热）re-sources produce about 7. 5 billion kilowatt-hours（千瓦时）of electricity per year,47 percent of all electricity generated from US geothermal energy. There are 2,960 wind turbines on public lands in California alone,producing electricity for about 300,000 people. Federal hydropower （水电）facilities produce about 17 percent of all hydropower produced in the United States.
Because of the growing US thirst for energy and increasing public unease with depend-ence on foreign off sources,pressure on public lands to meet US energy demand is becoming more intense. Public lands are available for energy development only after they have been evaluated through the land use planning process.If development of energy resources conflicts with management or use of other resources,development restrictions or impact moderation measures may be enforced,or mineral be banned altogether. Public lands can be used for energy development when______.
A.they go through the land use planning process
B.energy development restrictions are effective
C.federal land managers grant permissions
D.there is enough federal budget

[单选题]横越停有机车、车辆的线路时，先确认机车、车辆暂不移动，然后在该机车、车辆端部( )m以外绕行通过。A.2B.5C.10D.20

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[单选题]横越停有机车、车辆的线路时，先确认机车、车辆暂不移动，然后在该机车、车辆端部( )m以外绕行通过。
A.2
B.5
C.10
D.20