2011年考研英语真题答案与解析Section Use of EnglishAncient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health”. But 1(C.despite) some claims to the contrary, laughing probably has little influence on physical fitness. Laughter does 2(D.produce) short-term changes in the function of the heart and its blood vessels, 3(B.boosting) heart rate and oxygen consumption. But because hard laughter is difficult to 4(B.sustain), a good laugh is unlikely to have 5(A.measurable) b
