2020 年广西民族大学基础英语考研真题 B 卷1.Some infectious diseases, such as AIDS, take a heavy___on human immunity.A. impactB. loss C. toll D. casualty2.Because of poor grammar, some sentences in research papers by Chinese students seem___to the reviewers.A. incomprehensible B. inedible C. inestimableD. irreplaceable3.Almost each college student is equipped with a cell phone, laptop and other electronic____.A. galaxies B. ornamentsC. utensils D. gadgets4.Running for president is ____ demanding , emotionally draining, and physically taxing.A. incoherently B. intellectuallyC. intimatel...