单项选择题

By using the phrase the human quality of technology ( Par

A．2 ), the author refers to the fact that technology ______.A. has a gent impact on human lifeB. has some characteristics of human natureC. can replace some aspects of the human mindD. does not exist in the natural world
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单项选择题
A spear or a robot has the quality of technology only when it ______.
A．is used both as a cultural and a physical object
B．serves different purposes equally well
C．is utilized by man
D．can be of use to both man and animal
单项选择题
The examples of the Challenger and Chernobyl cited by the author serve to show that ______.
A．if not given close examination, technology could be used to destroy our word
B．technology is a human creation, so we are responsible for it
C．technology usually goes wrong, if not controlled by man
D．being a human creation, technology is liable to error
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