凝汽器和排汽缸有（）和（）两种连接方式。

金属在生产和生活中具有广泛的应用．

（1）下列金属制品的用途中，利用金属导热性的是______（填字母序号）．

（2）人类每年从自然界提取大量的金属，其中提取量最大的是铁．赤铁矿（主要成分为Fe₂O₃）和一氧化碳炼铁的化学方程式为______．

（3）铁制品容易锈蚀，铁生锈的条件是______．

（4）某工厂废液中含有氯化钠、氯化铜和氯化亚铁．某课外小组利用废液制取海绵铜（Cu）和氧化铁两种产品，过程如图所示（过程中不引入其他元素）．

请回答下列问题：

①溶液D中的溶质为______；

②检验C过量的方法是______；

③A～G七种物质中含铁元素的物质有______（填字母序号）．

小儿咳嗽的发病原因有（）

A.感受外邪

B.饮食所伤

C.情志损伤

D.禀赋不足

E.疾病影响

根据有关规定，有（ ）情形之一的，存款人应向开户银行提出撤销银行结算账户的申请。

A．被撤并、解散、宣告破产或关闭

B．改变单位名称

C．因迁址需要变更开户银行

D．注销、被吊销营业执照的

Long bus rides are like television shows. They have a beginning,a middle,and an endwith commercials （商业广告） thrown in every three or four minutes. The commercials are unavoidable. They happen whether you want them or not. Every couple of minutes a billboard glides by outside the bus window. "Buy Super Clean Toothpaste.""Drink Good Wet Root Beer.""Fill up with Pacific Gas."Only if you sleep,which is equal to turning the television set off,are you spared the unending cry of "You Need It! Buy It Now!"

The beginning of the ride is comfortable and somewhat exciting,even if you’ve traveled that way before. Usually some things have changednew houses,new buildings,sometimes even a new road. The bus driver has a style of driving and it’s fun to try to figure it out the first hour or so. If the driver is particularly reckless （鲁莽的） or daring,the ride can be as thrilling （惊心动魄的） as a suspense story. Will the driver pass the truck in time? Will the driver move into the rightor the lefthand lane? After a while,of course,the excitement dies down. Sleeping for a while helps pass the middle hours of the ride. Food always makes bus rides more interesting. But you’ve got to be careful of what kind of food you eat. Too much salty food can make you very thirsty between stops.

The end of the ride is somewhat like the beginning. You know it will soon be over and there’s a kind of expectation and excitement in that. The seat of course,has become harder as the hours have passed. By now you’ve sat with your legs crossed,with your hands in your lap,with your hands on the armrestseven with your hands crossed behind your head. The end comes just at no more ways to sit.

小题1:According to the passage,what do the passengers usually see when they are on a long bus trip?

A．Buses on the road.

B．Films on television.

C．Advertisements on the billboards.

D．Gas stations.小题2:What is the purpose of this passage?

A．To give the writer’s opinion about long bus trips.

B．To persuade you to take a long bus trip.

C．To explain how bus trips and television shows differ.

D．To describe the billboards along the road.小题3:The writer of this passage would probably favor .

A．bus drivers who aren’t reckless

B．driving alone

C．a television set on the bus

D．no billboards along the road小题4:The writer feels long bus rides are like TV shows because .

A．the commercials both on TV shows and on billboards along the road are fun

B．they both have a beginning,a middle,and an end,with commercials in between

C．the drivers are always reckless on TV shows just as they are on buses

D．both traveling and watching TV are not exciting.小题5:The writer thinks that the end of the ride is somewhat like the beginning because both are .

A．exciting

B．comfortable

C．tiring

D．boring

泵与风机是把（）能转变为（）和（）的一种动力设备。