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问题 问答题 简答题

医院感染发生的基本条件是什么?

答案

参考答案：

医院感染按其感染来源分为内源性感染和外源性感染两种。病原体是内源性感染和外源性感染的共同的必备条件，但外源性感染还必须具备：

(1)感染源。

(2)传播途径：直接接触传播、间接接触传播、空气传播、共同媒介传播、生物媒介传播。

(3)易感宿主。

阅读理解

Easter(复活节)is one of the two important Christian festivals．Easter celebrates resurrections (复活) of Jesus Christ(耶稣基督)and Christmas celebrates his birth．It's not a festival as big as Christmas．It starts usually in late March or early April and the Easter holiday is Friday, Saturday, Sunday and Monday．It’s quite a long holiday for everybody．

The main symbol(象征物)of Easter is Easter eggs．Children like Easter eggs because they are made of chocolate．Eggs are a symbol of new life．

Easter is also a time for families to get together like Christmas．Many people see Easter as a nice long holiday and they have a good time with their families and friends．

小题1:People love Easter because ___________．

A．it’s a long holiday

B．it’s the birthday of Jesus Christ

C．they can have real eggs on that day

D．everybody believes in Jesus Christ小题2:People begin to celebrate Easter in _________．

A．mid-April or late April

B．mid-March or late March

C．late March or early April

D．early March or mid-March小题3:Easter eggs are _________．

A．covered by chocolate

B．chocolate eggs

C．a symbol of death

D．not food小题4:From the passages，we know that ________．

A．Jesus Christ died on Christmas Day

B．Jesus Christ was born on Christmas Day

C．Jesus Christ was born on Easter

D．Jesus Christ died and got his resurrection on Christmas Day．
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单项选择题

当执行下面程序且输入a boy时，输出的结果是______。 #include＜stdio.h＞ #include＜string.h＞ main() { char ss[81]="A BOY",hh[81],*pt;scanf("%s",hh);pt=strcat(ss,hh);puts(pt);printf("%s\n",hh); }

A．A BOY a a

B．A BOY a boy a boy

C．A BOY a boy a

D．A BOY a boy a boy
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