PartⅤ Key to Supplementary Practices
Practice 6.1
1.A 2.B 3.D 4.D 5.C 6.C 7.D 8.D 9.B 10.A
11.C 12.D 13.B 14.B 15.A 16.B 17.C 18.D 19.D 20.A
Practice 6.2
1.Social psychology is the scientific study of how people think,feel,and behave in social situations.
2.We have met many minimalists over the past year who live a most simple life.
3.Addiction has been defined as dependence on and abuse of a psychoactive substance.
4.An immunodeficiency may be acquired later in life（secondary immunodeficiency).The most common acquired immunodeficiency is AIDS.(https://www.daowen.com)
5.The pathogenesis of MDS has not yet fully addressed,and its diagnosis,classification and treatment remain largely uncertain.
6.A GMO,also called transgenic organism,refers to any living organism that possesses a novel combination of genetic material obtained through the use of modern biotechnology.
7.We aimed at investigating antibacterial activity of this drug in this study.
8.If you have regular physical exam,doctors will have the opportunity to detect and treat heart disease before it causes myocardial infarction.
9.It should go without saying that physicians,nurses and other hospital personnel should be immunized against most infectious diseases.
10.The first step in the process of cognition is to contact the objects of the outside world,which belongs to the stage of perception.
11.It takes no small measure of courage for anyone to challenge the established theories and principles in science.