问题 单项选择题

下列对菌群失调表述不正确的是()

A.定植部位正常,细菌数量发生变化

B.定植部位正常,细菌质量发生变化

C.毒力强的菌株处于劣势地位

D.耐药菌株居于优势地位

E.菌群失调症或称菌群交替症

答案

参考答案:C

解析:由于宿主、外界环境的影响,导致机体某一部位的正常菌群中各种细菌出现数量和质量的变化,原来在数量和毒力上处于劣势的细菌或耐药菌株居于优势地位,在临床上发生菌群失调症或称菌群交替症。

完形填空

阅读下列各小题,根据汉语提示,用句末括号内的英语单词完成句子,并将答案写在答题上的相应题号后。

小题1:__________________ that you may have made the wrong choice?(occur)

你是否曾经想到过也许你做出的是错误的选择?

小题2:The explosions at the Boston Marathon are reported __________________ and over a hundred injuries. (cause)

据报道,波士顿马拉松爆炸事件导致了三人死亡和一百多人受伤。

小题3:He has given us several phone calls, ___________________ his sincerity and determination. (convince)

他给我们打了好多通电话,这让我们相信了他的真诚和决心。

小题4:Before becoming prime minister, Mrs Thatcher ____________________ several cabinet posts. (occupy)

在成为首相之前,撒切尔夫人已出任过好几个内阁职位。

小题5:________________ in the investigation was a great shock for everybody. (confirm)

调查中所证实的事情让每个人大吃一惊。

小题6:Tom opened the door, and there _________________ who he had seen twice. (stand)

汤姆打开门,门口站着一个女孩,他曾见过两次。

小题7:His desire that __________________ actually keeps everybody away from him. (obey)

他想要每个人都顺从他,事实上却使得每个人都远离他。

小题8:It was not until months later _________________ living all alone without family and friends around. (adapt)

直到数月之后他才适应了没有家人和朋友在身边独自生活。

小题9:The more he insisted he was innocent, ________________ believe him. (seem)

他越坚称自己无辜,他们似乎越不相信他。

小题10:In those rough times mistakes, which _______________, were crowding in at the same time and my life was totally messed up. (avoid)

在那些诸事不顺的日子里,本可以避免的错误全都同时发生了,我的生活完全一团糟。

单项选择题