专业人才流向发达国家

The essay addresses both questions fully, presents developed main ideas about brain drain and a clear set of solutions, and supports them with a relevant example, though some argument development is verbose rather than sharply focused.

Progression is broadly clear with logical paragraphing and linking devices, but cohesion is at times strained by long, convoluted sentences and slightly forced transitions such as 'Further are the problems posed'.

The response attempts a wide range of vocabulary, but expressions such as "anchoring rostrum", "they shall be promulgated" and "paucity and lacuna of the health index" obscure meaning. By contrast, "garnered notoriety" is valid, and the rare verb "guerdoning" does mean rewarding.

There is a range of complex structures, but control is uneven. The fragment beginning "Hence, making a poor country poorer" lacks a main verb, while "the wages, which is" has an agreement problem. Long sentences also make several relationships harder to follow.

The essay addresses both the problems and the solutions clearly, maintains a relevant position throughout, and develops main ideas with explanation and examples, though development is sometimes thin, as in the generalized claim about a lost generation.

Progression is logical with clear paragraphing and workable cohesive devices, but linking is at times mechanical and a phrase such as 'In , I believe' shows a coherence lapse that slightly disrupts flow.

Vocabulary is adequate for the task with some good items like brain drain and work-life balance, but reliance on formulaic phrases and occasional imprecise wording limit flexibility and precision.

A mix of structures is used with generally accurate complex sentences, yet errors such as faulty relative clauses and punctuation slips show control that is not yet consistently extended.

The response addresses both parts of the question, but the problems caused receive only a brief mention (a cycle of poverty) while most body content focuses on reasons for migration, and the solutions remain general and under-developed, so the task is only partially covered with uneven extension of ideas.

Ideas progress logically across clear paragraphs with effective linking devices and a coherent introduction and conclusion, though the balance of the essay drifts away from the required problems-and-solutions structure.

Vocabulary is reasonably flexible and precise, with appropriate terms such as 'brain drain', 'allure', and 'prosperous society', though occasional informal choices like 'pretty natural' slightly reduce precision.

A range of conditionals, relative clauses and complex sentences is used with generally accurate control. The hypothetical "if there was a way" is acceptable English and does not create tense inconsistency. The main weaknesses lie in developing the requested content rather than this construction.

The response addresses both questions fully, presents a clear position, and develops main ideas about specialist shortages and government investment with relevant supporting examples.

Ideas are logically organised across clear paragraphs with effective use of cohesive devices, though some linking is slightly mechanical and the framing is somewhat formulaic.

There is a good range of vocabulary for the topic, including less common items, but occasional awkward or imprecise collocations such as 'retain stuff' and 'considerable life losses' reduce precision.

A variety of complex structures, including conditionals and relative clauses, is used with good flexibility and generally accurate control, with only minor non-impeding errors.

The response addresses both questions with a clear position, develops relevant main ideas such as brain drain and understaffing, and supports them with examples, though some solutions receive somewhat uneven development.

Ideas progress logically across clear paragraphs with effective cohesive devices such as referencing and sequencing, with only occasional mechanical linking.

Vocabulary is sufficiently flexible and precise, with items like exodus, brain drain, and void in the workplace, alongside natural collocation and only minor slips.

A variety of complex structures, including conditionals and relative clauses, is used with generally good control, and errors are minor and rarely impede meaning.

The response addresses both questions directly with a clear overall position, well-developed problems and plausible solutions, though some causal claims, such as migration leading to war, are asserted rather than fully supported.

Ideas progress logically across clear paragraphs with effective use of cohesive devices, although a few transitions between ideas are slightly abrupt and some chains of consequences are compressed.

Vocabulary is sufficiently wide and mostly precise, with natural collocations such as 'conducive to growth' and 'channelised in positive ways', and only occasional slightly awkward phrasing like 'the meritorious lot'.

A range of complex sentences, relative clauses and passive constructions conveys the argument with generally good control. The shifts between past trends, present circumstances and possible future consequences do not themselves establish tense inconsistency or faulty subject-verb agreement.

The response addresses both questions directly with a clear position, well-developed main ideas about brain-drain effects and incentives, though support remains somewhat general.

The response has a clear sequence across its introduction, problem discussion, proposed solutions and conclusion. The phrase "This can be done by" occurs once, so it is not a repeated mechanical linker. Some long chains of consequences could be grouped more clearly to ease the progression.

The response demonstrates a good range of topic-related vocabulary, including items like 'brain-drain', 'poverty cycle', and 'state-of-the-art equipment', used with reasonable precision.

A variety of complex structures are used with generally good control, though minor slips in agreement and phrasing occur without impeding meaning.