可以作为mRNA翻译蛋白质的病毒核酸类型是() A.dsDNA B.dsRNA

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问题:

可以作为mRNA翻译蛋白质的病毒核酸类型是()

A.dsDNA

B.dsRNA

C.-SSRNA

D.+SSRNA

E.+SSDNA

考点:临床医学检验临床微生物临床医学检验临床微生物题库
题型:单项选择题

某工程在实施过程中发生如下事件:事件1:由于工程施工工期紧迫,建设单位在未领取施工许可证的情况下,要求项目监理机构签发施工单位报送的《工程开工报审表》。事件2:在未向项目监理机构报告的情况下,施工单位按照投标书中打桩工程及防水工程的分包计划,安排了打桩工程施工分包单位进场施工,项目监理机构对此做了相应处理后书面报告了建设单位。建设单位以打桩施工分包单位资质未经其认可就进场施工为由,不再允许施工单位将防水工程分包。事件3:桩基工程施工中,在抽检材料试验未完成的情况下,施工单位巳将该批材料用于工程,专业监理工程师发现后予以制止。其后完成的材料试验结果表明,该批材料不合格,经检验,使用该批材料的相应工程部位存在质量问题,需进行返修。事件4:施工中,由建设单位负责采购的设备在没有通知施工单位共同清点的情况下就存放在施工现场。施工单位安装时发现该设备的部分部件损坏。对此,建设单位要求施工单位承担损坏赔偿责任。事件5:上述设备安装完毕后进行的单机无负荷试车未通过验收,经检验认定是因为设备本身的质量问题造成的。

指出事件1和事件2中建设单位做法的不妥之处,说明理由。

题型:单项选择题

下列有关生产类型的特征描述不正确的是( )。

A.重型机器、新产品试制的生产都属于单件生产

B.成批的制造相同的产品,并且按一定周期重复的进行生产,称为成批生产

C.汽车、轴承及自行车的生产属成批生产

D.连续不断的生产数量很多的相同产品,称为大量生产。进行大量生产的工厂,其大多数工作是重复地对同一零件进行同一工序的加工

题型:单项选择题

Questions 6 to 10 are based on the following passage: (10 分)In previous generations, young people were under their parents’ control; now the teenagechildren of the West’s richest generation were ready for something to get excited about. The Beatlessimply put a spark to a fuse (导火线) that was waiting to be lit.Everything changed, and what changed for the Beatles was their lives and their working habits,in the midst of the hysterical (歇斯底里的)following the band attracted.. Because of the demand ofthe fans to see them perform, they played bigger and bigger venues (meeting places), especially inAmerica.But John, Paul, George and Ringo became increasingly unhappy that, because of the screamingof their fans, neither the band nor the audience could hear the music. Creatively frustrated and tiredof the pressures of life under siege (围攻) from their fans, they retired from playing concerts in 1966and decided to concentrate on recording.It was from this point that the brilliance of the Beades really began to reveal itself: they wouldrecord over their career some 200 songs. Never before nor since has any recording and writing groupeven developed and yet remained the same in the way the Beades did. Their songs never lost their universal appeal thanks to the warmth and timelessness of theirmelodies and lyrics.John and Paul were powerful singers with distinctive styles. It became apparent that, despite thefact that the songwriting credits were always equally attributed to them, Paul and John wrote andsang their own songs. George also contributed two or three of his own compositions to each of theBeatles eleven albums. Even Ringo wrote and sang the occasional song.

Which of the following is NOT true about the Beatles according to the passage

A.They made the young people of their time very excited.

B.They attracted a large following wherever they played.

C.They were always pleased with their popularity.

D.No other pop music group had ever recorded or written as many songs as they did.

题型:单项选择题

某建设单位与某水泥厂签订了水泥购销合同,该合同法律关系的客体是( )。

A.物
B.行为
C.智力成果
D.运输

题型:单项选择题

下述哪项不是细胞间直接电传递的特点()

A.双向传递

B.使机能上相似的细胞进行同步活动

C.传递速度比化学突触快

D.不受细胞理化因素改变的影响

E.以上都不是

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