根据热力学第二定律，进入一个生态系统的全部能量，最终要从生态系统中释放出去。( )

发布时间：2017-07-19 07:17 │ 来源：www.tikuol.com

题型：判断题

问题：

根据热力学第二定律，进入一个生态系统的全部能量，最终要从生态系统中释放出去。( )

考点：专升本考试生态学基础专升本生态学基础

题型：判断题

拔除下颌第一磨牙需要麻醉的神经为（）。

A.下齿糟神经

B.下齿糟神经及舌神经

C.下齿糟神经、舌神经、颊神经

D.局部浸润

E.下颌神经、舌神经、颊长神经

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患者，男，28岁，突然上腹剧痛，不能直腰，于发病30分钟后来诊，查BP 110/80mmHg，心率110次/分，痛苦面容，全腹压痛反跳痛和肌紧张，以剑突下为著，肝浊音界位于右锁骨中线第六肋间，肠鸣音消失，血Hb 12.1g/dl，WBC 7.0×10⁹/L，尿淀粉酶128 U/L。进一步有意义的手选检查方法是

A．腹部B超

B．腹立位平片

C．腹腔灌洗

D．腹部CT

E．生化检查

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题型：判断题

（6分）珊瑚礁是海洋最绚丽多彩的部分。阅读下列材料，回答问题：

材料一：珊瑚礁的制造者通常是仅仅2—3毫米长的微小海洋生物珊瑚虫。珊瑚虫生长需要的能量主要靠在它们体内共生的单细胞藻类虫黄藻提供。虫黄藻需要生长在22—30摄氏度、温暖且有一定盐度（34‰-36‰最佳）的海水中，同时它的光合作用还要求有充分的光照。

材料二：世界珊瑚礁分布图

（1）从纬度和海水深浅两个方面简要概括珊瑚礁的分布规律。（2分）

（2）分析同纬度的美洲、非洲西海岸和澳大利亚西海岸珊瑚礁分布很少甚至没有的原因。（2分）

（3）推测巴西东北部海岸缺少珊瑚礁的原因。（2分）

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题型：判断题

     Adults are often surprised by how well they remember something they learned as children but have never
practised in the meantime. A man who has not had an opportunity to go swimming for years can   1   swim
as well as ever when he gets back in the water. He can get on a bicycle after several decades and still   2
away. A mother who has not   3   the words for years can teach her daughter the poem that begins "Twinkle,
twinkle, little star" or recite the story of Cinderella or Snow White.
     One explanation is the law of overlearning, which can be stated as follows:   4   we have learned something,
additional learning increases the   5 of time we will remember it.
     In childhood, we usually continue to practise such skills as swimming, bicycle riding long after we have
learned them. We continue to listen to and   6   ourselves of poems such as "Twinkle, twinkle, little star" and
childhood tales such as Cinderella or Snow White. We not only learn but   7 .
     The law of overlearning explains why cramming (突击学习) for an examination,   8   it may result in a
passing grade, is not a   9   way to learn a school course. By cramming, a student may learn the subject well
enough to get by on the examination, but he is likely soon to forget almost everything he learned. A little
overlearning;  10 , is usually a good investment toward the future.

( )1. A. only
( )2. A. more
( )3. A. thought about
( )4. A. Before
( )5. A. accuracy
( )6. A. remind
( )7. A. recite
( )8. A. though
( )9. A. convenient
( )10. A. at most

B. hardly
B. drive
B. cared for
B. Once
B. unit
B. inform
B. overlearn
B. so
B. demanding
B. by the way

C. still
C. travel
C. showed up
C. Until
C. limit
C. warm
C. research
C. if
C. satisfactory
C. on the other hand

D. even
D. ride
D. brought up
D. Unless
D. length
D. recall
D. improve
D. after
D. swift
D. in the end

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题型：判断题

下述食管癌X线征象正确的是（）.

A.黏膜皱襞破坏

B.可形成充盈缺损

C.黏膜呈串珠状改变

D.管壁僵硬不规则

E.可形成溃疡

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