2. 外语
  3. Doctors are interested in using lasers as a surgical tool in operations on people who are ______ to heart attack.

Doctors are interested in using lasers as a surgical tool in operations on people who are ______ to heart attack.

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问题 Doctors are interested in using lasers as a surgical tool in operations on people who are ______ to heart attack.
选项 A、prone
B、disposed
C、infectious
D、accessible
答案A
解析 考查动词辨析。be prone to“易于……的，很可能……的”，强调一种倾向性；dispose“使易于，使易感染”，常用于dispose of sb./sth.；infectious“传染的，感染的”；be accessible to“易受影响的，易懂得的”，强调可以得到，距离上的接近。本题指病人有可能患心脏病，因此prone正确。
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