单项选择题

In the passage, the primary concern for the technological breakthroughs is ______.

A．the moral aspect
B．the technical side
C．the end and the means
D．the philosophy
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单项选择题
We could infer that in the paragraph next to this passage, the author will write about ______.
A．some fundamental ideas of morality
B．some dissents
C．the present state of research
D．the future prospects
单项选择题
Many welfare officials are motivated to increase their clients because ______.
A．they really care about the dependants
B．they are aiming at a greater power
C．they encourage the parasiticism
D．they profit a lot from their clients
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