燃煤锅炉运行时，锅炉风量的大小可以通过观察火焰和烟气的颜色大致作出，风量过小时()。
A. 火焰呈麦黄色，烟气呈灰白色
B. 火焰白亮刺眼，烟气呈白色
C. 火焰呈暗红色，烟气呈淡黑色
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A suitable title for this text would be______.
A. Bleak Future of AI
B. Digital Future: Uncertain
C. Bright Future of Digital Machines
Doom for Humans in the Future
The "marshmallow" experiment is a test about______.
A. accepting temptation
B. avoiding outcomes
C. deferring gratification
D. eating the confection
It is believed that individuals who are impatient______.
A. tend to get benefits at once
B. are able to delay rewards
C. would rather wait for the bigger reward
D. are probably deterred by potential punishments
According to Stephen Hawking,______.
AI is one of the risks that threaten human civilization
B. the development of AI cannot threaten human race
C. AI might be substituted for humans in the future
D. AI would redesign itself at a slow rate
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