过程分为几种类型 ( )。A．四种 B．三种 C．两种 D．一种

燃烧有哪几种类型？

温 * * * * 在与网民在线交流中多次谈到重视“道德力量”，重申“企业家的身上应该流淌着道德的血液”，强调诚信和道德是现代社会应该解决的紧迫问题。他在谈到青年人和医生群体时也分别发出了重视“道德力量”的号召。这从哲学上看符合( )

①正确的社会意识对社会存在有促进作用

②正确发挥主观能动性要发挥价值观的促进作用

③改造主观世界能够增强改造客观世界的能力

④正确的价值观对人的实践活动有积极的推动作用

A．①③

B．①②③

C．①④

D．①③④

下列关于类与对象的说法中，不正确的是( )。

A．对象是类的一个实例

B．任何一个对象只能属于一个具体的类

C．一个类只能有一个对象

D．类与对象的关系和数据类型与变量的关系相似

Can noncombustion (非燃烧) technology create a no-pollution way to drive？Imagine pulling into a service station to fuel up your car. But not at the gas pump or electric battery charger —at the air pump! That’s not hot air, either! The next generation of cars may run on thin air. Wouldn’t that be an incredible way to cut both pollution and dependence on foreign oil?

If you’ve ever inflated a balloon and then let it go, you’ve got the basics to test-drive the amazing MiniCAT, currently being developed by Noteur Development International (MDI), headquartered in Luxembourg. Invented by Formula One racing car designer Guy Negre, this experimental vehicle is unlike any car you’ve ever seen. While your family’s traditional car or SUV draws its horsepower using combustion, the only fuel that MiniCAT needs (CAT stands for Compressed Air Technology) is the air we breathe.

Start with about 25,000 gallons of air. Now, press it all into a space smaller than your school locker—because that’s the size of two super-strong, high-pressure air tanks, made from fiber and fixed beneath the air car. 

Confining that much air inside those small tanks generates an internal pressure of over 4,000 pounds per square inch. That’s over 300 times normal air pressure.

When this cold, high-pressure air enters MiniCAT’s unique engine, it interacts(交互作用) with warmer air to create pressure waves that pump the engine’s engineered pistons (活塞) to move the car. MiniCAT’s projected top speed is 60 miles per hour, with a range of 120 miles on a full air supply.

小题1:What is the passage mainly about?

A．Ways to cut down air pollution.

B．Cars that run on thin air.

C．Formula One racing car designer.

D．Dependence on foreign oil.小题2:What is MiniCAT according to the passage?

A．The name of a car.

B．The name of a balloon.

C．The name of a car company.

D．The name of a car designer.小题3:The underlined world “Confining” in Paragraph 4 can be replaced by ___________.

A．Keeping

B．Preventing

C．Pushing

D．Running小题4:What does the last paragraph tell us?

A．How much pressure the air creates.

B．How the car works.

C．What the normal air pressure is.

D．How the air gets into the engine.

在域的活动目录数据库中，管理员可以为用户创建用户帐户，这种用户帐户只存在于域中，所以被称为“（）用户帐户”。