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时间:2020-08-07 11:18:19
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日期:2020-08-07 11:18:19

1.   Climate plays an important part in determining the average numbers of a species, and periodical seasons of extreme cold or drought, I believe to be the most effective of all checks. I estimated that the winter of 1854-55 destroyed four-fifths of the birds in my own grounds; and this is a tremendous destruction, when we remember that ten per cent. is an extraordinarily severe mortality from epidemics with man. The action of climate seems at first sight to be quite independent of the struggle for existence; but in so far as climate chiefly acts in reducing food, it brings on the most severe struggle between the individuals, whether of the same or of distinct species, which subsist on the same kind of food. Even when climate, for instance extreme cold, acts directly, it will be the least vigorous, or those which have got least food through the advancing winter, which will suffer most. When we travel from south to north, or from a damp region to a dry, we invariably see some species gradually getting rarer and rarer, and finally disappearing; and the change of climate being conspicuous, we are tempted to attribute the whole effect to its direct action. But this is a very false view: we forget that each species, even where it most abounds, is constantly suffering enormous destruction at some period of its life, from enemies or from competitors for the same place and food; and if these enemies or competitors be in the least degree favoured by any slight change of climate, they will increase in numbers, and, as each area is already fully stocked with inhabitants, the other species will decrease. When we travel southward and see a species decreasing in numbers, we may feel sure that the cause lies quite as much in other species being favoured, as in this one being hurt. So it is when we travel northward, but in a somewhat lesser degree, for the number of species of all kinds, and therefore of competitors, decreases northwards; hence in going northward, or in ascending a mountain, we far oftener meet with stunted forms, due to the directly injurious action of climate, than we do in proceeding southwards or in descending a mountain. When we reach the Arctic regions, or snow-capped summits, or absolute deserts, the struggle for life is almost exclusively with the elements.That climate acts in main part indirectly by favouring other species, we may clearly see in the prodigious number of plants in our gardens which can perfectly well endure our climate, but which never become naturalised, for they cannot compete with our native plants, nor resist destruction by our native animals.
2. 虽然还能保证些许盈余,但她还是忍不住在每次消费前打好小算盘。
3.   `Ah, yes, but you never have anything to do with them!' she said.
4. 吴敬琏(国务院发展研究中心研究员)
5. 财政政策受供应学派经济学理论的影响,它认为低税率可以刺激经济的增长,从而消除可能导致的对预算的冲击,而赤字则可以通过削减政府开支来加以限制。然而,在减税的同时增加国防支出的决定,使得平衡预算的目标成为不可能。膨胀的预算赤字同严厉的货币控制目标之间的冲突,导致了利率的急剧上升。高利率令减税带来的刺激效应化为乌有,预算赤字进一步扩大,整个经济陷入了严重的衰退。
6. 而最终的盈利转折点,则来自整个团队的精细化运营能力,所以徐正需要自己的干将和团队,必须是复合型人才。


1.   So they went on for quite a time, writing, and meeting occasionally in London. She still wanted the physical, sexual thrill she could get with him by her own activity, his little orgasm being over. And he still wanted to give it her. Which was enough to keep them connected.
2. 打开电灯后,班布里奇和基斯塔科夫斯基等回到汽车里,返回南掩体。
3. 与亨特相反,在《钢琴课》中与亨特联合主演的安娜·帕奎因(Anna Paquin),她的小金人似乎居无定所,游荡在她装袜子的抽屉和放靴子的地板之间。
4.   The afternoon came on wet and somewhat misty: as it waned intodusk, I began to feel that we were getting very far indeed fromGateshead: we ceased to pass through towns; the country changed; greatgrey hills heaved up round the horizon: as twilight deepened, wedescended a valley, dark with wood, and long after night hadoverclouded the prospect, I heard a wild wind rushing amongst trees.
5. 为了尽快找到突破口,邱军和队友们白天背着大包四处摸排线索,晚上整理资料,饿了就吃碗泡面,困了就趴在桌子或者沙发、地板上小睡一会儿。
6. 在职场上,40.34%的人不会选择表达自己的性别身份,19.69%的跨性别者在工作中着装与认同的性别不符。


1. She put her hand warningly on Ermengarde's.
2. 专家提醒,一旦发生肢体离断伤,市民切记以下3点:1、止血,观察断面,如果持续出血,用干净的布料、毛巾或纱布用力压住受伤部位包扎止血。
3. 女儿和女婿宽慰她,别担心,我们来解决,叮嘱她看好孩子。
4. 自强的事业颇多,我先择其要者列表于下。
5.   The commissary then, instead of continuing to interrogate him,made him a long speech upon the danger there is for an obscurecitizen to meddle with public matters. He complicated thisexordium by an exposition in which he painted the power and thedeeds of the cardinal, that incomparable minister, that conquerorof past minister, that conqueror of past ministers, that examplefor ministers to come--deeds and power which none could thwartwith impunity.
6.   To another who inquired, "Is it something really good?" themanager replied:


1. 2
2. DNA from the bones matched that of descendants of the king's sister, while the skeleton had the twisted spine and battle injuries consistent with contemporary accounts, said researchers from the University of Leicester.
3. 淘集集、熊猫直播等新贵陨落,暴风影音这样的老字号陷入困境等。
4.   "My dear Planchet, I an the happiest of men!"
5. 其他土地16399.77平方米按每平方米8元的标准处以罚款,计人民币131198.16元,共计164596.84元。
6.   "Well, monsieur, let us go to him. Let us adjure him, in thename of the God before whom he must perhaps appear, to speak thetruth. I will take him for judge in his own cause, monsieur, andwill believe what he will say."


1. 芮成钢:所以您就真的认为中国的股市已经从慢牛进入到熊市了?
2.   "AFTER we were clear of the river Oceanus, and had got out intothe open sea, we went on till we reached the Aeaean island where thereis dawn and sunrise as in other places. We then drew our ship on tothe sands and got out of her on to the shore, where we went to sleepand waited till day should break.
3. 12月28日,全国人大常委会审议通过了《基本医疗卫生与健康促进法》,该法将自2020年6月1日起施行。

网友评论(37379 / 91189 )

  • 1:程开甲 2020-07-22 11:18:20


  • 2:付琼英 2020-07-19 11:18:21

      "Sidi-Nouman," she said, "the books I have just consulted tell me that Amina is not home at present, but she should return at any moment. I have likewise found out by their means, that she pretends before the servants great uneasiness as to your absence. She has circulated a story that, while at dinner with her, you remembered some important business that had to be done at once, and left the house without shutting the door. By this means a dog had strayed in, which she was forced to get rid of by a stick. Go home then without delay, and await Amina's return in your room. When she comes in, go down to meet her, and in her surprise, she will try to run away. Then have this bottle ready, and dash the water it contains over her, saying boldly, "Receive the reward of your crimes." That is all I have to tell you."

  • 3:焦山舒 2020-08-01 11:18:21

      "Oh, that I do, and with infinite pleasure," answeredAlbert; "and so much the more readily as a letter receivedthis morning from my father summons me to Paris, inconsequence of a treaty of marriage (my dear Franz, do notsmile, I beg of you) with a family of high standing, andconnected with the very cream of Parisian society."

  • 4:廖晖 2020-07-26 11:18:21

    adj. 方便的,便利的

  • 5:马俊仁 2020-07-18 11:18:21


  • 6:杨虎城 2020-07-27 11:18:21


  • 7:泰克尼克 2020-08-03 11:18:21

      Various duties awaited me on my arrival: I had to sit with thegirls during their hour of study; then it was my turn to read prayers;to see them to bed: afterwards I supped with the other teachers.Even when we finally retired for the night, the inevitable MissGryce was still my companion: we had only a short end of candle in ourcandlestick, and I dreaded lest she should talk till it was allburnt out; fortunately, however, the heavy supper she had eatenproduced a soporific effect: she was already snoring before I hadfinished undressing. There still remained an inch of candle: I nowtook out my letter; the seal was an initial F.; I broke it; thecontents were brief.Thursday, possesses the acquirements mentioned, and if she is in aposition to give satisfactory references as to character andcompetency, a situation can be offered her where there is but onepupil, a little girl, under ten years of age; and where the salaryis thirty pounds per annum. J. E. is requested to send references,name, address, and all particulars to the direction:-

  • 8:赵昌平 2020-08-04 11:18:21

      Needlesse were any fresh relation to you, what manner of peoplethose three men were, Calandrino, Bruno, and Buffalmaco, becausealready you have had sufficient understanding of them. Andtherefore, as an induction to my discourse, I must tell you, thatCalandrino had a small Country-house, in a Village some-what neereto Florence, which came to him by the marriage of his Wife. Amon otherCattle and Poultry, which he kept there in store, hee had a youngBoare readie fatted for Brawne, whereof yearly he used to kill one forhis owne provision; and alwaies in the month of December, he and hiswife resorted to their village house, to have a Brawne both killed andsalted.

  • 9:特科 2020-08-06 11:18:21


  • 10:叶文勇 2020-08-02 11:18:21