监测资料整理和整编的基本资料包括（）A.监测系统设计原则 B.工程基本资料 C.监测

经济危机爆发的根本原因是( )

A．生产力与生产关系的矛盾

B．资本主义社会基本矛盾

C．社会基本矛盾

D．两大对立阶级的矛盾

很多树木对大气粉尘有很好的阻滞过滤作用，其原因是

①森林枝叶茂密，能减缓风速 ②有些树木叶面上有绒毛或能分泌油性、黏性的物质 ③能吸收各种有毒气体 ④能分泌抗生素 ⑤蒙尘的树叶经雨水冲刷后，能很快恢复以阻滞尘埃 [ ]

A．①③⑤

B．①②④

C．②④⑤

D．①②⑤

Drinking Water: Bottled or From the Tap（水龙头）?

In America, people will include a case or two of bottled water when buying the week's groceries（日用杂货）．When they are going to a soccer game or activity, it's common for them to grab a cold bottle of water out of the fridge with them．In fact, Americans buy more bottled water than any other nation in the world, about 29 billion bottles a year．

But all these plastic bottles use a lot of fossil fuels and pollute the environment．In order to make all the 29 billion bottles, producers use 17 million barrels of crude oil, which is enough to keep a million cars going for 12 months．

So why don't people drink water straight from the tap? Some people have a strong belief that bottled water is better than water out of the tap, but that's not necessarily true．In the US, the local governments make sure water from the tap is safe．There is also growing concern that chemicals in the bottles themselves may go into the water．

People love the convenience of bottled water．But maybe if they realized the problems it causes, they would try drinking from a glass at home or carrying water in a reusable steel container instead of plastic．

Some argue that plastic bottle recycling can help．Recycled bottles can be turned into items like carpeting or clothing．Unfortunately, only one in six bottles is recycled．The rest make it to landfills（垃圾填坦场） or end as trash in other places．Plastic bottles take hundreds of years for them to disintegrate．

Water is important for you, so keep drinking it．But think about how often you use water bottles, and see if you can make a change．

And yes, you can make a difference．Remember this: Recycling one plastic bottle can save enough energy to power a 60-watt light bulb for six hours．

小题1:How many cars can be kept going for a year by the crude oil used to make 29 billion bottles?

A．100．

B．I,000．

C．100,000．

D．I,000,000．小题2:Why do Americans prefer bottled water?

A．Bottled water is better than water from the tap．

B．Bottled water is cheaper than water from the tap．

C．Bottled water contains beneficial chemicals in it．

D．Bottled water is more convenient than water from the tap．小题3:What does the underlined word "disintegrate" in the fifth paragraph probably mean^

A．Be well recycled．

B．Become less poisonous．

C．Break into small pieces．

D．Go down below a surface．小题4:The author's intention of writing this passage is to recommend Americans

A．drink more water from the tap

B．send plastic bottles to landfills.

C．use water bottles to power light bulbs

D．buy bottles filled with water from the tap

治疗神昏寒闭证，应选用的药组是（）

A.麝香配伍牛黄

B.麝香配伍苏合香

C.人参配伍附子

D.远志配伍朱砂

E.郁金配伍石菖蒲

当数据的物理结构(存储结构、存取方式等)改变时，不影响数据库的逻辑结构，从而不致引起应用程序的变化，这是指数据的（）。