若有人肆意进行攻击、污蔑，导游人员要严正驳斥，驳斥要理直气壮、观点鲜明，要有理、有据

在短文的空格内填入适当的词，使其内容通顺。

     At one time, making a film was an expensive activity only for a small group of people and film companies.

Not only were the tools and machines expensive but the cost of film was also far greater than most people

could afford. However, modem technology has (1)c______ all that.

     New technology has really opened up the world of film-making for film fans. Now a camera does not

cost (2)m______  and most young people are certainly able to pay for it. So all you need is to get one for

yourself. With that, you may then start your own film-making.

     However, film-making is (3)t______ work. You probably need many other people to help you. For example,

the (4)p______ of actors and actresses is very important in your film. Of course, these actors and actresses

may be your schoolmates, friends or family members. You don't even need to pay them a cent while they are

glad to be part of your job. 

     (5)B______ , you need to make up a story. Can you write your own one? If you have good imagination,

you can create an attractive story (6)e______ . Many world-famous film makers and producers are also good

story-writers. If not, perhaps you need someone else to write it for you. An excellent story is the key to

making a (7)s______ film.

下列(　　)不支持肺结核的诊断。

A．反复咳嗽

B．OT试验阳性

C．胸片可见结核病灶

D．起病急，突然高热

人们的消费活动，受各种因素的制约，其根本上是受（）。

A．供养人口数量的制约

B．家庭收入水平的制约

C．消费观念和习惯的制约

D．国家经济发展水平的制约

2009年，重庆市工商行政管理局对主城区流通领域家用燃气快速热水器质量进行了监测。“前锋”、“瑞鑫”、“吴太”这三品牌家用燃气快速热水器，各有一批次产品因热水产率不合格上黑榜。监测结果显示，热水产率指标成为产品不合格的最重要原因。热水产率反映出产品的实际产热水能力是否满足产品标称值，是家用燃气快速热水器产品规格划分的重要指标，是消费者选购产品的重要参考依据。国家标准规定热水产率指标不得低于90％。以下表格中是某燃气热水器的技术参数：其中“温升25℃热水产率8L/min”含义 是：每分钟进水8L，并可使水的温度升高25℃，求：

（1）热水器正常工作1min时水所吸收热量是多少?【水的比热容为4.2×10³J/（kg?℃）】

（2）热水器1min消耗的天然气为26.25dm³，那么热水器的效率η为多少?（天然气的热值为8×10⁷J/m³）

（3）我市今年正实施“五个重庆”（宜居重庆、畅通重庆、森林重庆、平安重庆、健康重庆）一系列年度目标，重庆的交通工具都往节能、环保型发展，部分汽车由烧油改为使用天燃气，加装小容量的燃气罐容积约为65升，每次加气12m³，能跑160公里左右。如果汽车使用燃气的效率和热水器的效率相同，那么完全燃烧这部分天燃气，汽车匀速行驶时受到的阻力是多大?（12m³的天燃气是以压缩方式装入65升的气罐，一般压力在20-25MPa之间，约是正常状态下的天燃气体积的200-250倍。）

隧道的附属设施包括（）。

A.通风设施

B.照明设施

C.安全设施

D.供配电设施

E.排水设施