国际铁路联运列车上的用于进出境货物施封的篷布必须向海关申报。 ( )

电场中有一点P，下列说法中正确的是（   ）

A．若放在P点的电荷量减半，则P点的场强减半

B．若P点没有检验电荷，则P点场强为零

C．P点的场强越大，则同一电荷在P点受到的电场力越大

D．P点的场强方向为放在该点的电荷的受力方向

关于信息加工，下列说法中不正确的是（）

A.信息加工是对采集的信息进行判别、筛选、分类、排序、分析和再造等一系列过程

B.通过信息加工，可以创造出新的信息

C.信息加工只能依赖计算机来完成

D.信息加工在于发掘信息的价值

（1）下表列出了a-f六种元素在周Fe₂O₃固体期表前三周期的位置．

							a
				b	c
d		e				f

请回答下列问题：

①c元素的名称是______，d元素位于______族．

②用元素符号表示，六种元素中，______元素的性质最稳定，______元素的原子半径最大．

③非金属性b______c．（填“大于”“小于”）

④用化学式表示，六种元素中，最高价氧化物属于两性氧化物的是______，最高价氧化物对应水化物酸性最强的是______．

（2）①有机气体A是一种植物生长调节剂，其相对分子质量为28．A通入溴水中，能使溴水褪色．A的分子式是______，其与溴水反应的化学方程式是______，反应类型为______反应．

②同分异构现象的广泛存在是造成有机物种类繁多的重要原因之一．C₄H₁₀有两种同分异构体，其结构简式分别是______，______．

阅读理解。

     Prince Charles yesterday promised to reduce the royal impact on the environment through sweeping

changes to his personal lifestyle and official schedule. The prince will replace carbon-heavy private jets

and helicopters with scheduled flights and train services.

     The move came as Prince Charles urged business leaders to publish the environmental pact of their

activities.

     He said, "Few accountants and business decision-makers ask, 'How much of our critical natural resource

is left? How many miles of polar ice cap has our business helped melt this year? By how many inches

have we raised sea levels? How many species have we put at risk? How many homes will be flooded, how

many people will die of thirst or starvation because of our activities?' These are not comfortable questions,

but, by Cod, they need to be asked."

     He added, "At the moment these costs do not appear in anyone's books... Yet they are real, they are

incurred now and in a relatively short time, the damage being caused may be beyond remedy (补救)." He

said the world was "running up the biggest global credit card debt in history, but with little or no thought

for how the bill will ever be paid".

     Flanked by the prime minister and business and community leaders at St James' Palace, the prince said

his new "accounting for sustainability" project would give consumers the power to choose products that

caused less damage to the planet.

     Duchy Originals, the prince's food company, is taking steps to work out how much carbon dioxide and

other green-house gas are emitted in growing, processing and distributing its products. The changes to the

prince's travel arrangements announced yesterday are part of a wider review of the carbon footprint

associated with activities at all three of his residences. Clarence House in London, Highgrove and Birkhall

on the Balmorals estate (庄园 ), as well as the activities of his 21 personal and 105 full-time staff. Measures

include a review of electricity use, commuter and other staff travel and are intended to identify further

reductions in carbon dioxide emissions. The review will report in June, when Clarence House will announce

annual targets to reduce carbon emission.

1. How does Prince Charles feel about business leaders in terms of environmental protection?

A. Dissatisfied.

B. Disappointed.

C. Doubtful.

D. Impatient.

2. In response to Prince Charles' calls, Duchy Originals will ____.

A. make as much green food as possible

B. cut down its cost

C. figure out its greenhouse gas emission

D. continue its greenhouse gas emission

3. The underlined phrase in paragraph 4 probably refers to ____.

A. the great amount of waste produced by industry

B. the great damage caused to the environment

C. the great amount of debts of the royal family

D. the high cost of industry in their producing process

4. What would be the best title for the passage?

A. Prince Charles promised Greener Royal Lifestyle

B. Better Late than Never

C. Prince Charles and His Concern for Environment

D. The Royal Family Has a Role to Play in Environment Protection

双臂电桥的用途是什么？