题目

最近为了防止滥用抗生素，上海等地区规定普通感冒不准使用抗生素。滥用抗生素会使人体内细菌形成耐药性，如果真的细菌感染，则往往由于体内细菌能够抵抗各种抗生素而无药可救。下列有关说法错误的是（ ）A. 抗生素的滥用导致“耐药性”细菌优选出来B. 细菌中本来就存在耐药性个体，长期使用导致 “耐药性”基因频率下降C. “耐药性”基因频率的改变引起病菌发生了进化D. 基因频率虽然改变了，但是新的病菌（物种）不一定产生  阅读理解 　　Every human being, no matter what he is doing, gives off body heat．The usual problem is how to dispose of it．But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem--how to collect body heat．They have designed a collection system which uses not only body heat, but the heat given off by such objects as light bubs and refrigerators as well．The system works so well that no conventional fuel is needed to make the campus's six buildings comfortable． 　　Some parts of most modern buildings--theaters and offices as well as classrooms are more than amply heated by people and lights and sometimes must be air-conditioned even in winter．The technique of saving heat and reusing it is called “heat recovery．”A few modern buildings recover heat, but the University's system is the first to recover heat from some buildings and reuse it in others． 　　Along the way, Pittsburgh has learned a great deal about some of its heat producers．The harder a student studies, the more heat his body gives off．Male students emit more heat than female students, and the larger a student, the more heat he produces．It is tempting to conclude that“the hottest prospect”for the Johnstown campus would be a hardworking, overweight male genius． (1) What does the underlined phrase“dispose of”in the first paragragh mean? [　　] A． make use of B． get rid of C． give up D． gather up (2) According to the passage, the“heat recovery”is used for ________． [　　] A． providing air-conditioned in winter B． providing heat for the hot water system C． collecting heat and reusing it D． finding out the objects that give off heat (3) The phrase“the hottest prospect”in the last paragraph refers to ________ [　　] A． the person who gives off most heat B． the person who suffers most from heat C． the person who needs more heat than others D． the person who makes better use of body heat (4) According to the passage, who would produce the least amount of heat? [　　] A． A thin female who does not study． B． A fat female who studies hard． C． A thin male who studies hard． D． A fat male who hardly studies．