【单选题】Which quality of heroes is not mentioned in the lesson?
A.
Heroes have a strong moral compass.
B.
Heroes are competent and confident
C.
Heroes are usually famous people with special talents.
【简答题】简述未经消毒的鲜牛奶发生自然腐败变质时,微生物菌群的变化规律。
【单选题】According to the author, the practice of heroi/ing scientists______.
A.
exaggerates the importance of their discoveries
B.
distorts the essence of scientific progress
C.
conceals the goals of most scientific research
D.
inspires young scientists to work alone diligently
【简答题】A.persons B.heroines C.characters D.heroes
【多选题】从生态意义和可持续发展的最终目标出发,构建一套新型的绿色体系已成为当务之急,它包括:()
【单选题】下列关于旅游可持续发展的说法中,错误的是( )
A.
旅游可持续发展的概念是人类在面临人口、资源,生态环境的严峻形势下产生的
B.
1989年在荷兰海牙召开的“地球90国际大会”阐述了旅游可持续发展理论的主要框,架和主要措施
C.
旅游资源的质量、旅游环境的品味是使人们获得高质量感受的一个基本条件
D.
从泛生态的意义和可持续发展的最终目标出发,构建一套新型的绿色体系已成为当务之急
【简答题】返还系数对于信号继电器有着特别重要的意义,返还系数越高,标志着继电器的落下[ ] 。A. 越灵敏
【单选题】By saying 'heroes are normal people' in paragraph 3, the author means that heroes______.
A.
can hardly avoid making mistakes in life
B.
live a life no more brilliant than most of us
C.
are admired in public rather than in private
D.
are faced with more stresses than most people