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职称英语
理工类B级
[单选题]
The use of wrongmedicine may present a [hazard] to the patients.
A.protection
B.indication
C.immunity
D.danger
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![The use of wrongmedicine may present a [hazard] to the patients.](https://img.zhaotiba.com/tiku75/15025315.jpg "The use of wrongmedicine may present a [hazard] to the patients.")