单项选择题

According to the passage ,Brazil has cut back its population growth ______.

A．by educating its citizens
B．by careful family planning
C．by developing TV programmes
D．by chance
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单项选择题
A nutritionist does diet studies by ______.
A．asking the patient only about his general diet habit of having breakfast
B．asking the patient to recall the nutritious food he ate in the past 24 hours
C．asking the patient about how healthy he thinks he is
D．asking the patient to provide a list of his daily diet
单项选择题
How can a urine test show a patient may have a vitamin deficiency
A．A lot of vitamins are in the urine.
B．The body refuses to absorb vitamins.
C．Only a few vitamins passes through the body.
D．A lot of vitamins are taken in by the body.
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