单项选择题According to the passage, why has human intelligence not been copied in the making of a robot
单项选择题The passage is a piece of ______.
单项选择题The last word of the passage addictive means ______.
单项选择题According to the passage, all of the following are advisable to older adults for a fitness program except ______.
单项选择题The word embrace (Sent. 2, Para. 3) may convey the meaning of ______.