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【单选题】
下列有关空气中各种成分的说法正确的是（ ）A.
空气质量报告中所列的空气污染指数越低，空气质量越差
B.
氮气的化学性质不活泼，常用于食品防腐
C.
稀有气体的化学性质稳定，不能与任何物质反应
D.
二氧化碳在空气中含量增多会引起温室效应，属于空气污染物
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【单选题】在全面质量管理中,关于职责,下面说法有误的是( )
A.
总经理：分析管理目标差异，组织制定措施并实施改进
B.
服务经理负责预约、接待顾客
C.
综合管理员负责每日5S检查及相关报表的收集或编制
D.
维修经理负责维修进度管理
【单选题】The Daylight Saving Time Energy Act of 1973 was responsible for
A.
preserving and setting Daylight Saving Time across the continent
B.
instituting five time zones in the United States
C.
extending Daylight Saving Time in the interest of energy conservation
D.
conserving energy by giving the Department of Transportation authority over time laws
【单选题】In which of the following aspects has the event had support?
A.
Saving energy.
B.
Saving water.
C.
Raising awareness about how to combat global warming.
D.
Increasing people's knowledge about saving electricity.
【单选题】Mount Wutai,_____we visited last month,attracts hundreds of thsousands of vistors every year.
A.
where
B.
which
C.
what
D.
as
【简答题】A．career-killing B．career-facilitating C．time-consuming D．energy-saving
【单选题】Saving energy means saving money.Homeowners and renters know this basic fact,but they often don’t know what kinds of adjustments they can make in their homes and apartments that will result in savings...
A.
You can reduce your $130 monthly lighting costs to $65 by using fluorescent bulbs instead of incandescent.
B.
Double-paned windows can cut energy costs.
C.
Your local energy company will send an energy auditor at your request.
D.
Some appliances have energy-saving settings.
【简答题】Where is Mount Taishan located?
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