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[单选题]

It is highly()that he come here tomorrow to join us.

A.desirable

B.doubtful

C.good

D.wanted

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更多“It is highly()that he come her…”相关的问题
第1题
2016年大学生物专业英语期末考试英文短文1翻译答案

1. “The Nobel Prize in Physiology or Medicine 2004”Press Release(15分)

4 October 2004

The Nobel Assemblyat Karolinska Institutet has today decided to award The Nobel Prize in Physiology or Medicine for 2004 jointly toRichard Axel and Linda B. Buckfor their discoveries of "odorant receptors and the organization of the olfactory system"

Summary

The sense of smell long remained the most enigmatic of our senses. The basic principles for recognizing and remembering about 10,000 different odours were not understood. This year's Nobel Laureates in Physiology or Medicine have solved this problem and in a series of pioneering studies clarified how our olfactory system works. They discovered a large gene family, comprised of some 1,000 different genes (three per cent of our genes) that give rise to an equivalent number of olfactory receptor types. These receptors are located on the olfactory receptor cells, which occupy a small area in the upper part of the nasal epithelium and detect the inhaled odorant molecules.

Each olfactory receptor cell possesses only one type of odorant receptor, and each receptor can detect a limited number of odorant substances. Our olfactory receptor cells are therefore highly specialized for a few odours. The cells send thin nerve processes directly to distinct micro domains, glomeruli, in the olfactory bulb, the primary olfactory area of the brain. Receptor cells carrying the same type of receptor send their nerve processes to the same glomerulus. From these micro domains in the olfactory bulb the information is relayed further to other parts of the brain, where the information from several olfactory receptors is combined, forming a pattern. Therefore, we can consciously experience the smell of a lilac flower in the spring and recall this olfactory memory at other times.

Richard Axel, New York, USA, and Linda Buck, Seattle, USA, published the fundamental paper jointly in 1991, in which they described the very large family of about one thousand genes for odorant receptors. Axel and Buck have since worked independent of each other, and they have in several elegant, often parallel, studies clarified the olfactory system, from the molecular level to the organization of the cells.

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第2题
耐火等级为二级时楼板和吊顶的耐火极限应满足()。

A.1.50 h,0.25 h

B.1.00h,0.25 h

C.1.50 h,0.15h

D.1.00 h,0.15 h

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第3题
下列含氧酸中酸性最弱的是()

A.HNO₃

B.H₃PO₄

C.H₃AsO₄

D.H₂SO₄

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第4题
低故障率元器件通常用菲特(Fit)作为故障率单位,其符号为()

A.10-3/h

B.10-6/h

C.10-9/h

D.10-12/h

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第5题
有关红外光谱吸收峰的位置,下列按σ从大到小排序正确的是()。

A.C≡C>C=C>C—C

B.C—H>C—C>C—O

C.γC—H>βC—H>νC—H

D.C—H>O—H>N—H

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第6题
普通话中的“好”用国际音标记为()。

A.[hɑo]

B.[xɑu]

C.[hɑu]

D.[xɑo]

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第7题
设H是一个Hash函数,如果寻找两个不同的效益x和x1使得H(x)=H(x1)在计算上是不可行的,则称H是随机碰撞的。()
设H是一个Hash函数,如果寻找两个不同的效益x和x1使得H(x)=H(x1)在计算上是不可行的,则称H是随机碰撞的。()

A.正确

B.错误

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第8题
H(s)的零点和极点中仅极点决定了h(t)的函数形式。()
H(s)的零点和极点中仅极点决定了h(t)的函数形式。()

A、错误

B、正确

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第9题
MD-5算法每轮的基本函数是()之一。

A.D,E,F,G

B.E,F,G,H

C.F,G,H,I

D.G,H,I,J

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第10题
已知R1:IFE1THEN(200,1)H。R2:IFE2THEN(30,1)H。证据E1和E2必然发生,并且P(H)=0.03,则O(H/E2)=()。
已知R1:IFE1THEN(200,1)H。R2:IFE2THEN(30,1)H。证据E1和E2必然发生,并且P(H)=0.03,则O(H/E2)=()。

A、0.927

B、0.9946

C、3

D、2

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第11题
在下列氧化剂中,其氧化性强弱与c(H⁺)无关的是()

A.H₂O₂

B.O₂

C.Cr₂O₇²⁻

D.Br₂

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