我国《海商法》对船长的责任与职权加以明确的规定，下列表述不正确的是（）。 A.船长作

阅读理解。

     Many Americans have been leaving their cars at home and riding to work on bicycles. They are

doing this because of gas prices, a slowing economy and concerns about the environment. Andy

Clark is the executive director of the League of American Bicyclists. His group supports bicycling

for fun, fitness and transportation.

     Mister Clark says this is good news for the environment. He says riding a bicycle to work does

not burn fossil fuel or create dangerous pollutants. Experts say the effects are the most important on

short trips. The Department of Transportation says fifty percent of Americans drive eight kilometers

or fewer to work. Shorter car trips release more pollution into the air for each kilometer driven. This

is because the device in a car that produces the harmfulness of emissions needs to warm up before it

can work well.

     Last year, the Pacific Northwest city of Portland, Oregon, had the highest percentage of bicycle

commuters(通勤者) in the United States. Portland has been doing progressive city planning for many

years to create special paths for bike riders.

     Andrew Land is one of Portland's citizens who bikes to work every day. Mister Land is thirty-three

years old and has never owned a car. He has biked to work for twelve years. Before moving to

Portland six years ago, he lived in Washington D.C. But he was hit by a car twice while biking to

work there. That has not happened in Portland where there are special; roads for bicycles. Mister

Land bought a house near these special bike lanes. He rides almost five kilometers to work each day

. He also uses the sixty-four kilometer bike path around the city.

     Andrew Land rides a cyclocross bike. He says it combines the best parts of a racing bike and a

mountain bike. You might say that Andrew Land is " into bikes". He recently attended a show of

handmade bicycle frames (结构). It was organized by thirty bicycle frame builders in Portland. And

he attended a legal rights workshop for bicyclists.

1. What is the correct explanation of " Shorter car trips release more pollution into the air for

each kilometer driven"?                                                       

A. Shorter trip cars run too slowly                                                         

B. Shorter trip cars are usually bad ones                                                    

C. Shorter trip cars waste too much fuel                                                     

D. Shorter trip car drivers are not skilled                                                   

2. What can be inferred in the third paragraph?                                              

A. Portland has more bikes than any other city in the USA                                    

B. The people in Portland are very poor                                                      

C. The traffic in Portland is very good                                                      

D. Cars are not allowed to run in Portland                                                    

3. Why Andrew Land was hit by a car twice while biking to work in Washington D.C?            

A. Because he was too careless  

B. Because there were no special paths for bike riders        

C. Because the road there was too crowded

D. Because he just did it for fun                  

4. What is the suitable meaning of " into bikes" in the last paragraph?                    

A. He is fascinated with bikes                                                                

B. He lives in a house made from bikes                                                        

C. he likes to run into bikes                                                                

D. He is good at making bikes   

下列聚落建筑属于世界文化遗产的是（　　）

A．黄土高原上的窑洞

B．北京的四合院

C．北极地区的雪屋

D．云南的丽江古城

我国宪法规定了公民享有平等权、政治权利和自由、宗教信仰自由、人身自由、社会经济文化权利等基本权利。这说明[ ]

A、宪法规定国家生活中的根本问题           

B、宪法是全体公民的最高行为准则

C、宪法是人民权利的保障书           　　　

D、宪法具有最高的法律效力

热日夏天，水泥路面的温度往往比河水高得多，这是由于                    。为此，市政部门经常派出洒水车向路面洒水降温，这是利用了            的道理。若某辆洒水车洒水时做匀速直线运动，则车的牵引力            ___(＞/＜/＝)车所受的摩擦力，洒水车的动能将      _____ (增大/减小/不变)。

简述语言规划的步骤。