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Agriculture is undoubtedly the most important sector in the economies of most non-oil exporting African countries. It (62) about 30% of Africa’s GDP and contributes (63) 50% of the total export value, (64) 70% of the continent’s population depending on the sector for their (65) . Production is subsistence in nature with a high (66) on the rain. The debate on climate change and its impacts on agriculture is (67) very crucial to the very survival of the continent and its people. The continent is particularly (68) to climate change because it includes some of the world’s poorest nations. The climate in Africa is (69) tropical in nature, which is broadly (70) into three main climatic zones: (71) equatorial, dry, and temperate(温带). Within these zones, altitude and other localized (72) also produce distinctive regional climates. Climate change, (73) indicated by prolonged drought is one of the most serious climatic (74) affecting the agricultural sector of the continent. As most of the agriculture activities in African countries hinges on rain fed, any adverse changes in the climate would likely have a (75) effect on the sector in the region. (76) changes in the climate may affect the whole continent, its (77) may vary across the continent. In northeast Africa, more intense dry periods and shorter wet seasons are expected to affect even huge river systems such as the Blue Nile, leading to serious water shortages and (78) consequences to the agriculture and forestry sectors throughout the region. East and Central Africa will also see its agricultural (79) decline. Coastal areas may also be affected by rising sea levels and intrusion of salt water into inland freshwater resources. The staple food for the region, maize, is particularly susceptible to drought. Wetlands of international importance and wildlife are also under threat from (80) in Southern Africa. Climate change, therefore, is expected to worsen the food supply, (81) , exacerbate the widespread poverty in the region.
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Just as the Corporate cowboys of the 1970s destroyed the reputation of the corporations they headed, and engaged in grand scale self indulgence at corporate expense, now Australia is in the era of the campus cowboy (and female counterpart). They too overstate the performance of their product and corporation, and indulge in grand scale self indulgence, despite their claims of academic excellence and projecting a holier ’than holy image. Academics are put under various pressures to drop the standard of university education so that more students are retained through to graduation, thereby maximizing the revenue collected by governments of both persuasions and the more revenue handed back to the universities to fund the outrageous perquisites of senior management at those institutions. Australian universities artificially boost student numbers by accepting many Australians who should not be allowed within 100 kilometers of a university on the grounds of their intellectual rigor and/or lack of diligence and by actively recruiting full fee paying overseas students. Despite increased HECS fees, lecturers have been instructed to neglect their teaching in favor of research which generates further university revenue. Both tactics by Australian universities have resulted in a dumbing down of Australian tertiary (高等的) education. Sure the courses look good on paper, but how they are administered results in the massive abandonment of educational standards. For example, in some cases, students can pass a subject having scored only 30% on the final exam. In some instances, the English of the overseas students is limited and lecturers have trouble understanding what students are trying to say. They are under pressure to pass the student in order to retain them as cash cows. Lecturers are under so much pressure from their university managers that they employ tactics such as giving the students the exam questions and answers before the exam giving ’mock’ exams and answers that are the same as the ’real’ exam and setting only the simplest of questions (which are similar to questions students have already done in tutorials. Why aren’t various parties doing something about the situation Students don’t complain because they get their qualification and higher grades with less work. Lecturers complain but bow to the pressure imposed on them because they have mortgages to pay, families to feed and a career investment in tertiary education. Universities win because lower standards and easier success means more students will come back to do higher degrees—a win-win situation Professions which employ large groups of graduates don’t complain because the system produces more ’qualified’ graduates for employers to choose from, thus forcing down salaries and generating more revenue for the profession’s administrators from increased numbers of people undertaking postgraduate professional exams necessary for admittance to the relevant profession. What should graduates usually do to get into professions relative to his major
(四) 某施工总承包单位承担一项建筑基坑工程的施工，基坑开挖深度12m，基坑南侧距坑边6m处有一栋6层住宅楼。基坑土质状况从地面向下依次为：杂填土0～2m，粉质土2～5m，砂质土5～10m，黏性土10～12m，砂质土12～18m。上层滞水水位在地表以下5m(渗透系数为0.5m/d)，地表下18m以内无承压水。基坑支护设计采用灌注桩加锚杆。施工前，建设单位为节约投资，指示更改设计，除南侧外其余三面均采用土钉墙支护，垂直开挖。基坑在开挖过程中北侧支护出现较大变形，但一直未被发现，最终导致北侧支护部分坍塌。事故调查中发现： (1)施工总承包单位对本工程作了重大危险源分析，确认南侧毗邻建筑物、临边防护、上下通道的安全为重大危险源，并制订了相应的措施，但未审批。 (2)施工总承包单位有健全的安全制度文件。 (3)施工过程中无任何安全检查记录、交底记录及培训教育记录等其他记录资料。 问题 根据《建筑施工安全检查标准》(JGJ 59—1999)基坑支护安全检查评分表的要求，本基坑支护工程还应检查哪些项目
Directions: In this part, you are required to write a composition entitled My View on Comparison in no less than 200 words. Your composition should be based on the following outline: 1. The definition of comparison. 2. I have benefited a lot from comparison. 3. The application of comparison in the academic realm.
病人男性，23岁，8天前癫痫大发作后出现纳差，几乎不能进食，恶心、呕吐，吐胃内容物，乏力，伴无尿，尿量在每天0～50ml，无头晕、头痛，无腰痛、尿痛。5天前至急诊查尿常规示：pro(+++)，BLD(+++)；肾功能：BUN 17.2mmol/L，Cr 1100μmoL/L；B超示：双肾形态、大小正常，肾盂、输尿管无扩张。 此时护士应警惕病人容易出现的电解质紊乱是( )。
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