微生物学奠基人柯赫的贡献()。
A. 制作培养基及建立纯培养技术
B. 成功地培养了病毒
C. 提出了三域分类系统
D. 证明了果汁发酵是由微生物引起的
巴斯德对微生物学的贡献在于他()。
A. 发现了病毒
B. 提出了自然发生说理论
C. 创立了进化论
D. 研制了狂犬疫苗
Question 6At the end of the exam, the instructor picks up the tall stack of exam papers and walks out the door with the rest of the class. Outside, a gust of wind catches some of the exam papers and they begin to blow away but none of the onlooking students try to help catch them. What is the name of the situational factor that describes the students' behaviour?
A. Expectancy effect
B. Observer effect
C. Bystander effect
D. Social conformity effect
E. False consensus effect
Question 5Which of the following is not an example of a one-sided event? 以下哪个例子没有说明片面事件?
A. "The item I purchase always goes on sale the day after I buy it." 我一买东西第二天它就降价
B. "I usually need something just after I've thrown it away."我刚扔了一样东西就发现我需要它
C. "It always rains right after you wash the car." 你一洗车天就下雨
D. "You win some, you lose some." 有得必有失
E. "The bus always seems to be heading in the wrong direction." 公车似乎总是正走着错误的方向