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We must press ahead to optimize and upgrade the industrial s......

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单项选择题
Which of the following is NOT true
A．When a person tries to help others, he must be clear that there is a real emergency.
B．When a person tries to help others, he should know whether hey are worth his help.
C．A person must take the full responsibility for the safety of those in emergencies if he wants to help.
D．A person with a heart attack needs the most.
单项选择题
The last two paragraphs tell us about______.
A．future technology of robots
B．automated machines’ use
C．the tiny robots
D．the development of micro-electromechanical technique
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