Liquid fuels. qualitative investigation of sulphur in light hydrocarbons. plumbite method doctor test.

液体燃料。轻质烃中硫的定性测定。铅酸盐法博士法。

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The teacher sent me home with a note for my mother that said I needed to visit the eye doctor because I failed the vision test.

老师送我回家，给我妈妈留了张便条，上面写着我需要去看眼科医生，因为我视力测试不及格。

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A doctor can use this test to tell if a patient might have the disease, as well as by studying the patient's medical history.

VOA: special.2009.01.06

After a few moments of tense conversation, the doctor ordered the test and my friend left.

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Ask your doctor if the test they want to order is really necessary.

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For two years, she saw doctor after doctor and had test after test, but no one at Duke could figure out what was happening to her body.

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