单项选择题

What is Bob going to pay for

A．His ticket only.
B．Their vacation.
C．His supper only.
D．Their supper.

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单项选择题

单项选择题

Health authorities allow insurers to use genetic information for the purpose of______.

A．improving genetic testing technology
B．safeguarding patients’’ interests
C．promoting disease prevention
D．reducing insurance payments

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