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鉴别甲状腺功能亢进和单纯甲状腺肿最有价值的一项是
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注射用水是注射剂的溶剂，其检查( )
综合资金成本由企业所有个别资金成本相加而得到。 ( )
Migrant (移民的) WorkersIn the past twenty years, there has been an increasing tendency for workers to move from one country to another. While some countries have restricted most (51) to local people, others have attracted and welcomed migrant workers. This is particularly the case in the Middle East, (52) increased oil incomes have enabled many countries to call in outsiders to improve local facilities. Thus the Middle East has attracted oil-workers (53) the .U.S.A. and Europe. It has brought in workers from many countries, (54) South Korea and Japan.In view of the difficult living and working (55) in the Middle East, it is not surprising that the pay is high to attract suitable workers. Many engineers and technicians can (56) at least twice as much money in the Middle East as they can in their own country, and this is a major (57) .Sometimes a disadvantage has a compensating (补偿) advantage. For example, the (58) living conditions often lead to increased friendship when workers have to (59) on each other for safety and comfort. In a similar way, many migrant workers can save large sums of money partly because of the (60) of entertainment facilities. The work is often complex and full of problems but this merely (61) greater challenge to engineers who prefer to find solutions to problems rather than do routine work in their home country.One major problem which (62) migrant workers in the Middle East is that their jobs are temporary ones. They are nearly always on (63) , so it is not easy for them to plan ahead with great confidence. This is to be (64) since no country welcomes a large number of foreign workers as permanent residents. In any (65) , migrant workers accept this disadvantage, along with others, because of the considerable financial benefits which they receive. 61().
甲状腺功能亢进者采用下列哪种治疗最易引起甲状腺功能减退
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