在数列an (n=1,2,……)中，a1 =1959，a2 =1995，且从第三项开

—I’d like to take a week’s holiday, Mr. Smith.      —_______, we’re too busy these days.

A．Don’t worry

B．Don’t mention it

C．Forget it

D．Pardon me

一个病人到医院看病，他来到诊室说：“我嗓子疼，赶快给我看看，快点，快点。”医生对他毫不客气。他和医生吵了一架。之后，他又去商店，看到一件衣服挺漂亮，想买，他对售货员说：“喂，喂！把那件衣服拿来我看看。”售货员没理他，他又嚷道：“说你呢，听见没有。”售货员也没给他好气。他是病也没看，衣服也没买成。你认为，造成这种结局的主要原因是 [ ]

A．不尊重他人，没有礼貌

B．医生和售货员缺乏职业道德

C．他不是大款也不是帅哥

D．他是个没有知识的人

流行病学研究的观察法与实验法的根本区别在于（）

A.盲法

B.是否人为控制研究的条件

C.设立对照组

D.不设立对照组

E.统计学检验

Mr. Hall was a rich businessman and lived in a big house beside a beautiful river.

The river usually __16__ over in winter, and one year __17__ happened very early, so that by Christmas time it was covered with really __18__ ice. People could walk across it safely.

The sight of this ice gave Mr. Hall __19__. He decided to have a big Christmas party on the ice. He would have all the furniture in his living-room _ 20 _ out onto the ice. He would have pretty colored lights _ 21 _  all around, and they would have a wonderful party. So he sent out __22__ to all his important friends, and on Christmas Eve they all began to _ 23   his house and then went onto the ice. They were all in very good _ 24   and thought that it _25_a wonderful idea of Mr. Hall to have a party on the ice.

The party   26   until late at night, and as the _ 27   guests said their merry Christmas, Mr. Hall was pleased with himself for the __28   party.

He had drunk rather  29   at the party, so he did not wake up very early __30  morning. In fact, it was   31  midday when he got up and looked out of the window at the spot where the party was held last night. __32__ he saw there made him wonder whether he was still  33 _. He closed his eyes, opened them again but there was no mistake! The ice had ­­__34   up in the early sunshine and had carried all his living-room furniture out to __35  .

小题1:

A．flows

B．flowed

C．freeze

D．froze小题2:

A．freezing

B．ice

C．snow

D．rain小题3:

A．thin

B．thick

C．deep

D．shallow小题4:

A．a wish

B．an idea

C．a hope

D．a plan小题5:

A．selling

B．carrying

C．sold

D．carried小题6:

A．lay

B．lain

C．hung

D．hanged小题7:

A．introductions

B．invitations

C．informations

D．lights小题8:

A．look for

B．come to

C．see

D．leave小题9:

A．spirit

B．strength

C．condition

D．manners小题10:

A．would be

B．had been

C．had had

D．would have小题11:

A．went to

B．kept on

C．happened

D．took place小题12:

A．first

B．last

C．most

D．important小题13:

A．big

B．new

C．interesting

D．successful小题14:

A．many

B．little

C．a lot

D．more小题15:

A．next

B．the next

C．following

D．followed小题16:

A．most

B．mostly

C．near

D．nearly小题17:

A．Where

B．What

C．That

D．Which小题18:

A．afraid

B．awake

C．asleep

D．alive小题19:

A．dried

B．come

C．frozen

D．broken小题20:

A．his house

B．the sea

C．the river

D．land

门脉高压时，反向压力可导致脾（）

A.肿大并充血

B.脾门淋巴结肿大

C.梗死

D.萎缩

E.占位