题目内容：
回答题：LoweringtheRiskofHeartDisease
LikemillionsofotherAmericans,IcomefromafamilywithahistoryoftheheartdiseasMyfatherhadhisfirstthreeheartattackswhenhewasonlythirty-on_____________（46）IgrewupwithheartdiseasItwasthere,butIdidn’ttakeitseriousl
WhenIwasthirty-one,mybloodcholesterol（胆固醇）levelwasmeasuredforthefirsttimItwas311mg/dl,thedoctortoldme-anextremelyhighlevelthatputmeataveryhighhighriskofheartdisease,especiallywithmyfamilyhistorHesentmetotheNationalInstitutesofHealth（NIH）tobescreenedforparticipationinaclinicaltria_____________（47）
AtNIH,physiciansexplainedthedegreeofriskassociatedwithmybloodcholesterollevelandthenatureoftheexperimenThistestinvolvesputtingatubethroughalegartery（动脉）uptothehear_____________（48）
LearningabouttherisksoftheexperimentaswellastheriskassociatedwithmyraisedbloodcholesterollevelscaredthelifeoutofmAlthoughIwasexcludedfromparticipatinginthestudy,theexperiencemaywellhavesavedmylife Forthefirsttime,Ibegantorealizetheseriousnessofhighbloodcholestero___________（49）Butequallyimportant,Igotatasteofwhatitisliketobeapatient,tohavetestsdoneonmeandtothinkofmyselfassicThiswashardtotak
ThisexperiencetaughtmetwolifesavinglessonFirst,althoughIfeltfitandstrong,Iwasactuallyathighriskforheartdiseasebecauseofmyhighbloodcholesterolleve l. And with my
A．But equally important, I got a taste of what it is like to be a patient, to have tests done on me and to think of myself as sick.
B．He sent me to the National Institute of Health (NIH) to be screened for participation in a clinical trial.
C．I grew up with heart disease.
D．The death rate for the test was only 1 in 100, I was assured.
E．And with my family history, it could not be ignored.
F．This is what I had experienced before. family history，it could not be ignored. Second，I could lower my blood cholesterol level simply by changing what I ate.
_____________（46）
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