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Analysts attributed the growing technical strength of the firms to higher research input. Data from annual reports showed that the combined research and development (R&D) expenditure of the firms totaled 59.91 billion yuan (.8 billion) in 2018, up 15.69 percent year-on-year.

Ana Rita Sithole, member of the Polibureau of Mozambique Liberation Front, the ruling party of the country, said the strong desire for cooperation between China and Africa could break through the barrier brought by their great geographical distance.

Analysts said the tertiary industry, accounting for over half of China's GDP last year, has served as the ballast stone for a stable job market as services, mainly labor-intensive sectors, are more effective in creating new job opportunities than the traditional secondary industry.

And earlier that month, more than 70 infant deaths were reported from the same hospital from various causes, including oxygen shortage.

Analysts had projected a 16.8 million pace, down from 17.2 million a year earlier.