井口压力过高时，可采用防喷器缓慢泄压。

下列词语中画线字的注音完全正确的一组是 [ ]

A．直截了当(jiē)       高官厚禄(lù)       生息繁衍(yǎn)    受益匪浅(fēi)     

B．烟熏火燎(liáo)      翩翩起舞(piān)   完璧归赵(bì)       孜孜不倦(zī)     

C．竭尽全力(jié)       雍容典雅(yōng)  礼尚往来(shǎng)  龇牙咧嘴(cī)     

D．恰如其分(fèn)     气喘吁吁(xū)      负荆请罪(jīng)     拈轻怕重(niān)

历史学家陈旭麓说：“那时候，天下滔滔，多是泥古而顽梗之人。……如果没有‘中体’作为前提，‘西用’无所依托，他在中国是进不了门，落不了户的。”这则材料实质 (   )

A．批判近代洋务派的“中体西用”

B．肯定了西方的先进技术

C．肯定了“中学为体”在当时具有积极作用

D．指出“中体西用”思想的缺陷

天南星具有而半夏不具有的功效是

A．祛风止痉

B．消痞散结

C．降逆止呕

D．燥湿化痰

E．理气通络

I never thought I would have a life­changing experience at Wal­Mart.

Although my thoughts were only on speed，the checkout line I was standing in wasn’t moving as quickly as I wanted，and I glanced toward the cashier.

There stood a man in his seventies，wearing glasses and a nice smile.I thought，well，he’s an old guy!

For the next few minutes I watched him.He greeted every customer before scanning the items.Sure，his words were the usual，“How’s it going？” But he did something different—he actually listened to people.Then he would respond to what they had said and engage them in brief conversation.

I thought it was odd.I had grown accustomed to people asking me how I was doing simply out of robotic conversational habit.After a while，you don’t give any thought to the question and just mumble something back.I could say，“I just found out I have six months to live，” and someone would reply，“Have a great day！”

But that wasn’t the end.

He gave them the change，walked around the counter，and extended his right hand in an act of friendship.He looked the customers in the eyes.“I sure want to thank you for shopping here today，” he told them.“You have a great day.Bye­bye.”

The looks on the faces of the customers were priceless.There were smiles and some sheepish grins.All had been touched by his simple gesture—and in a place they never expected.They would gather their things and walk out，smiling.

Of course，he did the same to me and I got to know his name，Marty.

Who was that guy？It was as if Sam Walton had come back from the dead and invaded this old guy’s body.

I had never walked away from that shop feeling like that.

小题1:The checkout line the writer was standing in moved slower than expected because ________.

A．the cashier couldn’t work as fast as others

B．there were some big purchases

C．the cashier did more than scanning the items

D．the writer was not patient enough小题2:According to the writer，when common people ask you “How’s it going？” ________.

A．they don’t really care what you may answer

B．they are just practicing their conversation ability

C．they are inquiring about your private information

D．they don’t expect to hear any negative answers小题3:What was most customers’ reaction to Marty’s behaviors?

A．They thought it priceless.

B．They were in some way moved.

C．They thought it awful and odd.

D．They felt somewhat offended.小题4:What does the writer intend to express through the text?

A．Our everyday life is always full of surprises.

B．Most customers enjoy being treated this way.

C．Being different is a good way of doing business.

D．A little positive action can make a big difference.

鱼类感光细胞是：（）。