【C9】A．hearB．bearC．fearD．tear

【C6】A．endureB．bearC．reviveD．survive

【C6】A．hearB．listenC．speakD．see

【C11】A．hearB．hearingC．to hearD．heard

【C6】A．timeB．caseC．fearD．consequence

在MEDLINE光盘检索中，“hear*”能检索到A、hearB、hearingC、headD、heart

52._________A. troubleB. timeC. fearD. pleasure