2. 外语
  3. A、Strengthening people’s immunity to infection. B、Better understanding patients’ immune system. C、Helping improve old people’s h

A、Strengthening people’s immunity to infection. B、Better understanding patients’ immune system. C、Helping improve old people’s h

admin2022-07-23  37
问题
选项 A、Strengthening people’s immunity to infection.
B、Better understanding patients’ immune system.
C、Helping improve old people’s health conditions.
D、Further reducing old patients’ medical expenses.
答案C
解析
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大学英语四级

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